Selected numbers in the range 6001–6999

6001 to 6099

• 6025 – Rhythm guitarist of the Dead Kennedys from June 1978 to March 1979. Full name is Carlos Cadona.

• 6028 – centered heptagonal number^[1]

• 6037 – super-prime, prime of the form 2p-1

• 6047 – safe prime

• 6053 – Sophie Germain prime

• 6069 – nonagonal number^[2]

• 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

• 6089 – highly cototient number^[3]

• 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

• 6133 – 800th prime number

• 6143 – Thabit number

• 6173 – Sophie Germain prime

• 6174 – Kaprekar's constant

• 6181 – octahedral number^[4]

6200 to 6299

• 6200 – harmonic divisor number^[5]

• 6201 – square pyramidal number^[6]

• 6211 – cuban prime of the form x = y + 1^[7]

• 6216 – triangular number

• 6217 – super-prime, prime of the form 2p-1

• 6229 – super-prime

• 6232 – amicable number with 6368

• 6236 – Most widely accepted figure for the number of verses in the Qur'an

• 6241 – 792, centered octagonal number^[8]

• 6250 – Leyland number^[9]

• 6263 – Sophie Germain prime, balanced prime

• 6269 – Sophie Germain prime

• 6280 – decagonal number^[10]

6300 to 6399

• 6311 – super-prime

• 6317 – balanced prime

• 6322 – centered heptagonal number^[1]

• 6323 – Sophie Germain prime, balanced prime, super-prime

• 6328 – triangular number

• 6329 – Sophie Germain prime

• 6346 – Number of verses in the Qur'an according to the sect founded by Rashad Khalifa.^[11]

• 6348 – pentagonal pyramidal number^[12]

• 6361 – prime of the form 2p-1, twin prime

• 6364 – nonagonal number^[2]

• 6367 – balanced prime

• 6368 – amicable number with 6232

• 6373 – balanced prime, sum of three and seven consecutive primes (2113 + 2129 + 2131 and 883 + 887 + 907 + 911 + 919 + 929 +937)

• 6397 – sum of three consecutive primes (2129 + 2131 + 2137)

• 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^[13]

• 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^[3]

• 6521 – Sophie Germain prime

• 6545 – tetrahedral number^[14]

• 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 – 38, 812, perfect totient number,^[15] centered octagonal number^[8]

• 6599 – safe prime

• 6563 – Sophie Germain prime

• 6581 – Sophie Germain prime

6600 to 6699

• 6601 – Carmichael number,^[16] decagonal number^[10]

• 6623 – centered heptagonal number^[1]

• 6659 – safe prime

• 6666 – nonagonal number

• 6670 – triangular number

6700 to 6799

• 6719 – safe prime, highly cototient number^[3]

• 6724 – 822

• 6728 – number of domino tilings of a 6×6 checkerboard

• 6761 – Sophie Germain prime

• 6765 – 20th Fibonacci number^[17]

• 6779 – safe prime

• 6786 – triangular number

6800 to 6899

• 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

• 6859 – 193

• 6863 – balanced prime

• 6880 – vampire number^[18]

• 6889 – 832, centered octagonal number^[8]

• 6899 – Sophie Germain prime, safe prime

6900 to 6999

• 6903 – triangular number

• 6924 – magic constant of n × n normal magic square and n-Queens Problem for n = 24.

• 6929 – highly cototient number^[3]

• 6930 – decagonal number,^[10] square pyramidal number^[6]

• 6931 – centered heptagonal number^[1]

• 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

See also

• Year 6000