100 (number)

100
← 100 101 102 103 104 105 106 107 108 109 → List of numbers — Integers ← 100 110 120 130 140 150 160 170 180 190 →
Cardinal	100 one hundred
Ordinal	100th hundredth (or, one hundredth)
Numeral system	unary
Factorization	$2^2 \times 5^2$
Divisors	1, 2, 4, 5, 10, 20, 25, 50, 100
Greek numeral	ρʹ
Roman numeral	C
Roman numeral (Unicode)	C, ⅽ
Arabic	١٠٠
Bengali	১০০
Chinese numeral	佰,百
Korean	백
Devanagari	१००
Hebrew	ק (Kuf)
Khmer	១០០
Tamil	௱, க00
Thai	ร้อย, ๑๐๐
prefixes	Hundred
Binary	1100100
Octal	144
Duodecimal	84
Hexadecimal	64

100 (one hundred) (Roman numeral C, for centum) is the natural number following 99 and preceding 101.

In mathematics

One hundred is the square of 10 (in scientific notation it is written as 10²). The standard SI prefix for a hundred is "hecto-".

One hundred is the basis of percentages (per cent meaning "per hundred" in Latin), with 100% being a full amount.

It is the sum of the first nine prime numbers, as well as the sum of four pairs of prime numbers (47 + 53, 17 + 83, 3 + 97, 41 + 59), and the sum of the cubes of the first four integers (100 = 1³ + 2³ + 3³ + 4³). Also, 2⁶ + 6² = 100, thus 100 is a Leyland number.

One hundred is also an 18-gonal number. It is divisible by the number of primes below it, 25 in this case. But it can not be expressed as the difference between any integer and the total of coprimes below it, making it a noncototient. However, it can be expressed as a sum of some of its divisors, making it a semiperfect number.

100 is a Harshad number in base 10, and also in base 4, and in that base it is a self-descriptive number.

There are exactly 100 prime numbers whose digits are in strictly ascending order. (e.g. 239, 2357 etc.)

100 is the smallest number whose common logarithm is a prime number.

In science

The atomic number of fermium is 100.

On the Celsius scale, 100 degrees is the boiling temperature of pure water at sea level.

In Religion

• There are 100 blasts of the Shofar heard in the service of Rosh Hashana, the Jewish New Year. ^[1]

In politics

The United States Senate has 100 Senators.

In money

Most of the world's currencies are divided into 100 subunits; for example, one euro is one hundred cents and one pound sterling is one hundred pence.

The U.S. hundred-dollar bill has Benjamin Franklin's portrait; the "Benjamin" is the largest U.S. bill in print. American savings bonds of $100 have Thomas Jefferson's portrait, while American $100 treasury bonds have Andrew Jackson's portrait.

The U.S. hundred-dollar bill, Series 2009.

In other fields

One hundred is also:

• The number of years in a century
• The number of pounds in an American short hundredweight
• The number of tiles in a standard Scrabble set for the languages, English, Arabic, Catalan, Czech, Danish, Esperanto, Finnish, Hungarian, Irish, Latin, Malaysian, Norwegian, Polish, Romanian, Slovak, Slovenian, Spanish, Swedish, Turkish^{[2][citation needed]}
• In Greece, India, Israel and Nepal , 100 is the police telephone number.
• In Belgium, 100 is the ambulance and firefighter telephone number.
• In United Kingdom, 100 is the operator telephone number
• Hundred Days, aka the Waterloo Campaign
• "The First Hundred Days" is an arbitrary benchmark of a President of the United States' performance at the beginning of his or her term.
• 100 is the HTTP status code indicating that the client should continue with its request

In entertainment

When a TV series reaches 100 episodes, it is generally considered viable for syndication. (For shows picked up midseason, this point is generally reached during a prime time series' 5th season).

In sports

• The number of yards in an American football field (not including the end zones).^{[citation needed]}
• The number of runs required for a cricket batsman to score a century, a significant milestone.^[3][4]
• The number of points required for a snooker cueist to score a century break, a significant milestone.
• The record number of points scored in one NBA game by a single player, set by Wilt Chamberlain of the Philadelphia Warriors on March 2, 1962^[5] I
• The minimum distance in yards for a Par 3 on a golf course^{[citation needed]}

See also

Mathematics portal

• AFI's 100 Years...
• 100 Greatest Britons
• 100 Greatest Christmas Moments
• 100 Greatest Kids' TV shows
• Hundred (division)
• Hundred (word)
• Hundred Days
• Hundred Years' War
• List of highways numbered 100
• Top 100
• The Top 100 Crime Novels of All Time
• Top 100 winning pitchers of all time
• 100 Most Influential Books Ever Written

References

1. ^ Insights, September 28, 2011.
2. ^ A spread sheet issued by Spear's
3. ^ Wisden Cricketers’ Almanack 2011, pp. 1270-72, lists of double hundreds, hundreds, fastest hundreds etc., ed. Scyld Berry, pub John Wisden & Co Ltd. (April 2011). ISBN 978-1408131305.
4. ^ ESPN Cricinfo list of centuries http://stats.espncricinfo.com/ci/engine/records/index.html?category=3;class=1
5. ^ Wilt Chamberlain. (14 September 2010). In Basketball Legend Chamberlain Dies at 63. Retrieved September 14, 2010 from http://www.washingtonpost.com/wp-srv/sports/nba/daily/oct99/13/chamberlain13.htm

• Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1987): 133

External links

• On the Number 100