6000 (number)

Selected numbers in the range 6001–6999

6001 to 6099

• 6025 – Stage name of rhythm guitarist of the Dead Kennedys from June 1978 to March 1979. Full name is Carlos Cadona.
• 6028 – centered heptagonal number
• 6037 – super-prime, prime of the form 2p-1
• 6042 – 6042 Cheshirecat is a Mars-crossing asteroid.
• 6047 – safe prime
• 6053 – Sophie Germain prime
• 6069 – nonagonal number
• 6073 – balanced prime
• 6079 – The serial number Winston Smith is referred to as in the George Orwell novel Nineteen Eighty-Four
• 6084 = 78², sum of the cubes of the first twelve integers
• 6081 - sum of the first 54 primes
• 6089 – highly cototient number
• 6095 – magic constant of n × n normal magic square and n-Queens Problem for n = 23.

6100 to 6199

• 6101 – Sophie Germain prime
• 6105 – triangular number
• 6113 – Sophie Germain prime, super-prime
• 6121 – prime of the form 2p-1
• 6131 – Sophie Germain prime, twin prime with 6133
• 6133 – 800th prime number, twin prime with 6131
• 6143 – Thabit number
• 6144 – 3-smooth number
• 6173 – Sophie Germain prime
• 6174 – Kaprekar's constant
• 6181 – octahedral number

6200 to 6299

• 6200 – harmonic divisor number
• 6201 – square pyramidal number
• 6216 – triangular number
• 6217 – super-prime, prime of the form 2p-1
• 6229 – super-prime
• 6232 – amicable number with 6368
• – Most widely accepted figure for the number of verses in the Qur'an
• 6241 = 79², centered octagonal number
• 6250 – Leyland number
• 6263 – Sophie Germain prime, balanced prime
• 6269 – Sophie Germain prime
• 6280 – decagonal number

6300 to 6399

• 6311 – super-prime
• 6317 – balanced prime
• 6322 – centered heptagonal number
• 6323 – Sophie Germain prime, balanced prime, super-prime
• 6328 – triangular number
• 6329 – Sophie Germain prime
• 6337 - star prime
• 6338 - sum of the first 55 primes
• – Number of verses in the Qur'an according to the sect founded by Rashad Khalifa.
• 6348 – pentagonal pyramidal number
• 6361 – prime of the form 2p-1, twin prime
• 6364 – nonagonal number
• 6367 – balanced prime
• 6368 – amicable number with 6232
• 6373 – balanced prime, sum of three and seven consecutive primes
• 6397 – sum of three consecutive primes
• 6399 – smallest integer that cannot be expressed as a sum of fewer than 279 eighth powers

6400 to 6499

• 6400 = 80²
• 6408 – sum of the squares of the first thirteen primes
• 6441 – triangular number
• 6449 – Sophie Germain prime
• 6466 – Markov number
• 6480 – smallest number with exactly 50 factors
• 6491 – Sophie Germain prime

6500 to 6599

• 6502 – model number of the MOS Technology 6502 which equipped early computers such as the Apple I and II, Commodore PET, Atari and others.
• 6509 – highly cototient number
• 6521 – Sophie Germain prime
• 6542 – number of primes.
• 6545 – tetrahedral number
• 6551 – Sophie Germain prime
• 6555 – triangular number
• 6556 – member of a Ruth-Aaron pair with 6557
• 6557 – member of a Ruth-Aaron pair with 6556
• 6561 = 81² = 9⁴ = 3⁸, perfect totient number
• 6563 – Sophie Germain prime
• 6581 – Sophie Germain prime
• 6599 – safe prime

6600 to 6699

• 6601 - Carmichael number, decagonal number, sum of the first 56 primes
• 6623 – centered heptagonal number
• 6659 – safe prime
• 6666 – forty-fourth nonagonal number, and the 11th third-convolution of Fibonacci numbers. In Christian demonology it represents the number of demons in a legion of demons.
• 6670 – triangular number, centered nonagonal number, centered 19-gonal number,

6700 to 6799

• 6719 – safe prime, highly cototient number
• 6724 = 82²
• 6733 - star prime
• 6728 – number of domino tilings of a 6×6 checkerboard
• 6761 – Sophie Germain prime
• 6765 – 20th Fibonacci number
• 6779 – safe prime
• 6786 – triangular number

6800 to 6899

• 6811 – member of a Ruth-Aaron pair with 6812
• 6812 – member of a Ruth-Aaron pair with 6811
• 6827 – safe prime
• 6841 - largest right-truncatable prime in base 7
• 6842 – number of parallelogram polyominoes with 12 cells
• 6859 = 19³
• 6863 – balanced prime
• 6870 - sum of the first 57 primes
• 6879 – number of planar partitions of 15
• 6880 – vampire number
• 6889 = 83², centered octagonal number
• 6899 – Sophie Germain prime, safe prime

6900 to 6999

• 6903 – triangular number
• 6912 – 3-smooth 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
• 6969 – 2015 comedic progressive rock song by the band Ninja Sex Party
• 6975 – nonagonal number
• 6977 – balanced prime
• 6983 – Sophie Germain prime, safe prime
• 6997 – 900th prime number

Prime numbers