6000 (number)

6000 (six thousand) is the natural number following 5999 and preceding 6001.

Selected numbers in the range 6001-6999

* 6025 - Rhythm guitarist of the Dead Kennedys from June 1978 to March 1979. Full name is Carlos Cadona.
* 6028 - centered heptagonal number
* 6047 - safe prime
* 6053 - Sophie Germain prime
* 6069 - nonagonal number
* 6073 - balanced prime
* 6084 - $78^2$, sum of the cubes of the first twelve integers
* 6089 - highly cototient number
* 6095 - magic constant of "n"×"n" normal magic square and n-Queens Problem for n = 23.
* 6101 - Sophie Germain prime
* 6105 - triangular number
* 6113 - Sophie Germain prime
* 6131 - Sophie Germain prime
* 6143 - Thabit number
* 6173 - Sophie Germain prime
* 6174 - Kaprekar's constant
* 6181 - octahedral number
* 6200 - harmonic divisor number
* 6201 - square pyramidal number
* 6211 - cuban prime of the form x = y + 1
* 6216 - triangular number
* 6232 - amicable number with 6368
* 6241 - $79^2$, centered octagonal number
* 6250 - Leyland number
* 6263 - Sophie Germain prime, balanced prime
* 6269 - Sophie Germain prime
* 6280 - decagonal number
* 6317 - balanced prime
* 6322 - centered heptagonal number
* 6323 - Sophie Germain prime, balanced prime
* 6328 - triangular number
* 6348 - pentagonal pyramidal number
* 6364 - nonagonal number
* 6367 - balanced prime
* 6368 - amicable number with 6232
* 6373 - balanced prime
* 6399 - smallest integer that can't be expressed as a sum of fewer than 279 eighth powers
* 6400 - $80^2$
* 6408 - sum of the squares of the first thirteen primes
* 6441 - triangular number
* 6449 - Sophie Germain prime
* 6466 - Markov number
* 6491 - Sophie Germain prime
* 6509 - highly cototient number
* 6521 - Sophie Germain prime
* 6545 - tetrahedral number
* 6551 - Sophie Germain prime
* 6555 - triangular number
* 6556 - member of a Ruth-Aaron pair with 6557 (first definition)
* 6557 - member of a Ruth-Aaron pair with 6556 (first definition)
* 6561 - $3^8$, $81^2$, perfect totient number, centered octagonal number
* 6599 - safe prime
* 6563 - Sophie Germain prime
* 6581 - Sophie Germain prime
* 6601 - Carmichael number, decagonal number
* 6623 - centered heptagonal number
* 6659 - safe prime
* 6666 - nonagonal number
* 6670 - triangular number
* 6719 - safe prime, highly cototient number
* 6724 - $82^2$
* 6728 - number of domino tilings of a 6×6 checkerboard
* 6761 - Sophie Germain prime
* 6765 - Fibonacci number
* 6779 - safe prime
* 6811 - member of a Ruth-Aaron pair with 6812 (first definition)
* 6812 - member of a Ruth-Aaron pair with 6811 (first definition)
* 6827 - safe prime
* 6863 - balanced prime
* 6876 - triangular number
* 6880 - vampire number
* 6889 - $83^2$, centered octagonal number
* 6899 - Sophie Germain prime, safe prime
* 6903 - triangular number
* 6924 - magic constant of "n"×"n" normal magic square and n-Queens Problem for n = 24.
* 6929 - highly cototient number
* 6930 - decagonal number, square pyramidal number
* 6931 - centered heptagonal number
* 6975 - nonagonal number
* 6977 - balanced prime
* 6983 - Sophie Germain prime, safe prime