2000 (number)

2000 (number)

2000 (two thousand) is the natural number following 1999 and preceding 2001.

See also: millennium, year 2000 AD, Y2K, 2000 (disambiguation).

Two thousand is the highest number expressible using only two unmodified characters in roman numerals (MM).

Two thousand is also:
* In the name of the products Lever 2000 and Grecian 2000, Windows 2000
* In "Star Trek", the registry number of the USS Excelsior, NX-2000 in "Star Trek III: The Search for Spock", and NCC-2000 commanded by Hikaru Sulu in "Star Trek VI: The Undiscovered Country".
* The postal code for Antwerp (Belgium) and Sydney (Australia)

Selected numbers in the range 2001-2999

* 2001 - sphenic number
* 2003 - Sophie Germain prime
* 2007 - Last year (Gregorian Calendar)
* 2008 - Current year (Gregorian Calendar)
* 2009 - Next year (Gregorian Calendar)
* 2015 - Lucas-Carmichael number
* 2016 - triangular number
* 2017 - Mertens function zero
* 2020 - sum of the totient function for the first 81 integers
* 2024 - tetrahedral number
* 2025 - 45^2, sum of the cubes of the first nine integers, centered octagonal number
* 2027 - safe prime
* 2029 - member of the Mian-Chowla sequence
* 2030 - 21^2 + 22^2 + 23^2 + 24^2, 25^2 + 26^2 + 27^2
* 2031 - centered pentagonal number
* 2039 - Sophie Germain prime, safe prime
* 2047 - super-Poulet number, Woodall number, decagonal number
* 2048 - power of two
* 2056 - magic constant of "n"×"n" normal magic square and "n"-Queens Problem for "n" = 16.
* 2060 - sum of the totient function for the first 82 integers
* 2063 - Sophie Germain prime, safe prime
* 2069 - Sophie Germain prime
* 2070 - pronic number
* 2080 - triangular number
* 2093 - Mertens function zero
* 2095 - Mertens function zero
* 2096 - Mertens function zero
* 2097 - Mertens function zero
* 2099 - Mertens function zero, safe prime, highly cototient number
* 2100 - Mertens function zero
* 2101 - centered heptagonal number
* 2107 - member of a Ruth-Aaron pair with 2108 (first definition)
* 2108 - member of a Ruth-Aaron pair with 2107 (first definition)
* 2109 - square pyramidal number
* 2112 - The break-through album of the band Rush
* 2113 - Mertens function zero, Proth prime
* 2116 - 46^2
* 2117 - Mertens function zero
* 2119 - Mertens function zero
* 2120 - Mertens function zero
* 2122 - Mertens function zero
* 2125 - nonagonal number
* 2127 - sum of the first 34 primes
* 2129 - Sophie Germain prime
* 2135 - Mertens function zero
* 2136 - Mertens function zero
* 2138 - Mertens function zero
* 2141 - Sophie Germain prime
* 2142 - sum of the totient function for the first 83 integers
* 2145 - triangular number
* 2162 - pronic number
* 2166 - sum of the totient function for the first 84 integers
* 2169 - Leyland number
* 2171 - Mertens function zero
* 2172 - Mertens function zero
* 2175 - smallest number requiring 143 seventh powers for Waring representation
* 2176 - pentagonal pyramidal number, centered pentagonal number
* 2179 - Wedderburn-Etherington number
* 2187 - 3^7, vampire number, perfect totient number
* 2188 - Motzkin number
* 2197 - 13^3
* 2199 - perfect totient number
* 2205 - odd abundant number
* 2207 - safe prime, Lucas prime
* 2208 - Keith number
* 2209 - 47^2, centered octagonal number
* 2211 - triangular number
* 2223 - Kaprekar number
* 2230 - sum of the totient function for the first 85 integers
* 2232 - decagonal number
* 2254 - member of the Mian-Chowla sequence
* 2255 - octahedral number
* 2256 - pronic number
* 2269 - cuban prime
* 2272 - sum of the totient function for the first 86 integers
* 2273 - Sophie Germain prime
* 2276 - sum of the first 35 primes, centered heptagonal number
* 2278 - triangular number
* 2287 - balanced prime
* 2294 - Mertens function zero
* 2295 - Mertens function zero
* 2296 - Mertens function zero
* 2299 - member of a Ruth-Aaron pair with 2300 (first definition)
* 2300 - tetrahedral number, member of a Ruth-Aaron pair with 2299 (first definition)
* 2301 - nonagonal number
* 2304 - 48^2
* 2306 - Mertens function zero
* 2309 - primorial prime, Mertens function zero, highly cototient number
* 2310 - 5th primorial
* 2311 - primorial prime
* 2321 - Mertens function zero
* 2322 - Mertens function zero
* 2326 - centered pentagonal number
* 2328 - sum of the totient function for the first 87 integers, the number of groups of order 128, see [http://www-public.tu-bs.de:8080/~beick/soft/small/small.html] .

* 2331 - centered cube number
* 2338 - Mertens function zero
* 2339 - Sophie Germain prime
* 2346 - triangular number
* 2351 - Sophie Germain prime
* 2352 - pronic number
* 2357 - Smarandache-Wellin prime
* 2368 - sum of the totient function for the first 88 integers
* 2378 - Pell number
* 2379 - member of the Mian-Chowla sequence
* 2393 - Sophie Germain prime
* 2397 - sum of the squares of the first ten primes
* 2399 - Sophie Germain prime
* 2400 - perfect score on SAT tests administered after 2005
* 2401 - 7^4, 49^2, centered octagonal number
* 2415 - triangular number
* 2417 - balanced prime
* 2425 - decagonal number
* 2427 - sum of the first 36 primes
* 2437 - cuban prime
* 2447 - safe prime
* 2450 - pronic number
* 2456 - sum of the totient function for the first 89 integers
* 2458 - centered heptagonal number
* 2459 - Sophie Germain prime, safe prime
* 2465 - magic constant of "n"×"n" normal magic square and "n"-Queens Problem for "n" = 17, Carmichael number
* 2470 - square pyramidal number
* 2480 - sum of the totient function for the first 90 integers
* 2481 - centered pentagonal number
* 2484 - nonagonal number
* 2485 - triangular number
* 2491 - member of Ruth-Aaron pair with 2492 under second definition
* 2492 - member of Ruth-Aaron pair with 2491 under second definition
* 2500 - 50^2
* 2501 - Mertens function zero
* 2502 - Mertens function zero
* 2510 - member of the Mian-Chowla sequence
* 2513 - member of the Padovan sequence
* 2517 - Mertens function zero
* 2519 - the smallest number when divided by 10 gives a remainder 9; when divided by 9 gives a remainder 8; when divided by 7 gives a remainder 6; and so on until when divided by 2 gives a remainder 1
* 2520 - highly composite number; smallest number divisible by numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, & 12 ; colossally abundant number; Harshad number in several bases.
* 2522 - Mertens function zero
* 2523 - Mertens function zero
* 2524 - Mertens function zero
* 2525 - Mertens function zero
* 2530 - Mertens function zero, Leyland number
* 2533 - Mertens function zero
* 2537 - Mertens function zero
* 2538 - Mertens function zero
* 2543 - Sophie Germain prime
* 2549 - Sophie Germain prime
* 2550 - pronic number
* 2552 - sum of the totient function for the first 91 integers
* 2556 - triangular number
* 2567 - Mertens function zero
* 2568 - Mertens function zero. Also number of digits in the decimal expansion of 1000!, or the product of all natural numbers from 1 to 1000.
* 2570 - Mertens function zero
* 2579 - safe prime
* 2580 - Keith number
* 2584 - Fibonacci number, sum of the first 37 primes
* 2596 - sum of the totient function for the first 92 integers
* 2600 - tetrahedral number, member of a Ruth-Aaron pair with 2601 (first definition)
** 2600 Hz is the tone used by a blue box to defeat toll charges on long distance telephone calls.
** is a magazine named after the above.
** The Atari 2600 was a popular video game console.
* 2601 - 51^2, member of a Ruth-Aaron pair with 2600 (first definition)
* 2620 - amicable number with 2924
* 2626 - decagonal number
* 2628 - triangular number
* 2632 - number of consecutive baseball games played by Cal Ripken, Jr.
* 2641 - centered pentagonal number
* 2647 - centered heptagonal number
* 2652 - pronic number
* 2656 - sum of the totient function for the first 93 integers
* 2674 - nonagonal number
* 2677 - balanced prime
* 2680 - number of 11-Queens Problem solutions
* 2689 - Mertens function zero, Proth prime
* 2693 - Sophie Germain prime
* 2699 - Sophie Germain prime
* 2701 - triangular number, super-Poulet number
* 2702 - sum of the totient function for the first 94 integers
* 2704 - 52^2
* 2728 - Kaprekar number
* 2729 - highly cototient number
* 2731 - Wagstaff prime
* 2736 - octahedral number
* 2741 - Sophie Germain prime
* 2744 - 14^3
* 2747 - sum of the first 38 primes
* 2753 - Sophie Germain prime, Proth prime
* 2756 - pronic number
* 2774 - sum of the totient function for the first 95 integers
* 2775 - triangular number
* 2780 - member of the Mian-Chowla sequence
* 2783 - member of a Ruth-Aaron pair with 2784 (first definition)
* 2784 - member of a Ruth-Aaron pair with 2783 (first definition)
* 2791 - cuban prime
* 2806 - centered pentagonal number, sum of the totient function for the first 96 integers
* 2809 - 53^2, centered octagonal number
* 2819 - Sophie Germain prime, safe prime
* 2821 - Carmichael number
* 2835 - odd abundant number, decagonal number
* 2843 - centered heptagonal number
* 2850 - triangular number
* 2862 - pronic number
* 2870 - square pyramidal number
* 2871 - nonagonal number
* 2872 - tetranacci number
* 2879 - safe prime
* 2897 - Markov number
* 2902 - sum of the totient function for the first 97 integers
* 2903 - Sophie Germain prime, safe prime, balanced prime
* 2914 - sum of the first 39 primes
* 2915 - Lucas-Carmichael number
* 2916 - 54^2
* 2924 - amicable number with 2620
* 2925 - magic constant of "n"×"n" normal magic square and "n"-Queens Problem for "n" = 18, tetrahedral number, member of the Mian-Chowla sequence
* 2926 - triangular number
* 2939 - Sophie Germain prime
* 2944 - sum of the totient function for the first 98 integers
* 2963 - Sophie Germain prime, safe prime, balanced prime
* 2965 - greater of 2nd pair of Smith brothers
* 2969 - Sophie Germain prime
* 2970 - harmonic divisor number, pronic number
* 2976 - centered pentagonal number
* 2997 - chiliagonal number
* 2999 - safe prime


Wikimedia Foundation. 2010.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • Number One Stunna — Single by Big Tymers from the album I Got That Work Released …   Wikipedia

  • Number Nine Visual Technology — Corporation was a manufacturer of video graphics chips and cards from 1982 to 1999. Number Nine developed the first 128 bit graphics processor (the Imagine 128), as well as the first 256 color and 16.8 million color cards.[1] The name of the… …   Wikipedia

  • 2000 (disambiguation) — 2000 may refer to: * 2000, the year * Year 2000 problem * 2000 (number) * 2000 AD (comic) , a British science fiction comic book * 2000 B.C. (album), a 2000 album by rapper Canibus * 2000 (breakdance move) * mp|2000 CR|105, the third most distant …   Wikipedia

  • 2000 — This article is about the year 2000. For the number, see 2000 (number). For other uses, see 2000 (disambiguation). 2000 : January · February · March · April · May · June · July  …   Wikipedia

  • 2000 AD crossovers — are crossover stories appearing in British comic 2000 AD , its sister title the Judge Dredd Megazine , and other related output, such as novels, audio plays, films and role playing games. Not all of the stories told in 2000 AD and its related… …   Wikipedia

  • Number Girl — Origin  Japan, Fukuoka Genres Alternative rock, post hardcore, indie rock …   Wikipedia

  • Number 1 (Goldfrapp song) — Number 1 Single by Goldfrapp from the album Supernature B side …   Wikipedia

  • Number Sense (UIL) — Number Sense is one of several academic events sanctioned by the University Interscholastic League. It is also a competition held by the Texas Math and Science Coaches Association, using the same rules as the UIL. It is one of the UIL s oldest… …   Wikipedia

  • Number Nine — Rechtsform Aktiengesellschaft Gründung 1982 Sitz Lexington, Massachusetts Branche Hardware, Computer …   Deutsch Wikipedia

  • Number One Fan (band) — Number One Fan Origin Appleton, Wisconsin, USA Genres Alternative rock Years active 2000–2005 Labels Pat s Record Company …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”