8000 (number) - Selected Numbers in The Range 8001–8999

Selected Numbers in The Range 8001–8999

  • 8001triangular number
  • 8002 – Mertens function zero
  • 8011 – Mertens function zero
  • 8012 – Mertens function zero
  • 8017 – Mertens function zero
  • 8021 – Mertens function zero
  • 8039safe prime
  • 8069Sophie Germain prime
  • 8093 – Sophie Germain prime
  • 8100
  • 8111 – Sophie Germain prime
  • 8117 – balanced prime
  • 8119 – octahedral number
  • 8125 – pentagonal pyramidal number
  • 8128 – perfect number, harmonic divisor number, 127th triangular number, 64th hexagonal number, eighth 292-gonal number, fourth 1356-gonal number
  • 8147 – safe prime
  • 8189 – highly cototient number
  • 8190 – harmonic divisor number
  • 8191 – Mersenne prime
  • 8192 – power of two
  • 8233centered heptagonal number
  • 8243 – Sophie Germain prime
  • 8256 – triangular number
  • 8257 – sum of the squares of the first fourteen primes
  • 8269 – cuban prime of the form x = y + 1
  • 8273 – Sophie Germain prime
  • 8281 –, sum of the cubes of the first thirteen integers, nonagonal number, centered octagonal number
  • 8321 – super-Poulet number
  • 8326 – decagonal number
  • 8361 – Leyland number
  • 8385 – triangular number
  • 8423 – safe prime
  • 8436 – tetrahedral number
  • 8464
  • 8513 – Sophie Germain prime
  • 8515 – triangular number
  • 8543 – safe prime
  • 8555 – square pyramidal number
  • 8576 – centered heptagonal number
  • 8625 – enneagonal number
  • 8646 – triangular number
  • 8649 –, centered octagonal number
  • 8663 – Sophie Germain prime
  • 8693 – Sophie Germain prime
  • 8695 – decagonal number
  • 8699 – safe prime
  • 8712 – smallest number that is divisible by its reverse: 8712 = 4×2178 (excluding palindromes and numbers with trailing zeros)
  • 8713 – balanced prime
  • 8741 – Sophie Germain prime
  • 8747 – safe prime, balanced prime
  • 8751 – perfect totient number
  • 8778 – triangular number
  • 8783 – safe prime
  • 8801 – magic constant of n×n normal magic square and n-Queens Problem for n = 26.
  • 8819 – safe prime
  • 8833
  • 8836
  • 8855 – member of a Ruth-Aaron pair (first definition) with 8856
  • 8856 – member of a Ruth-Aaron pair (first definition) with 8855
  • 8911 – Carmichael number, triangular number
  • 8926 – centered heptagonal number
  • 8944 – sum of the cubes of the first seven primes
  • 8951 – Sophie Germain prime
  • 8963 – safe prime
  • 8969 – Sophie Germain prime
  • 8976 – enneagonal number

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