Home > 8000 (number)
89e03 80008000 is the natural number following 7999 and preceding 8001.
It is 203, as well as the sum of three consecutive integers cubed, 113 + 123 + 133 + 143.
The 14 tallest mountains on Earth, which exceed 8000 meters in height, are sometimes referred to as eight-thousanders.
Selected numbers in the range 8001 - 8999
- 8001 - triangular number
- 8002 - Mertens function zero
- 8011 - Mertens function zero
- 8012 - Mertens function zero
- 8017 - Mertens function zero
- 8021 - Mertens function zero
- 8069 - Sophie Germain prime
- 8093 - Sophie Germain prime
- 8111 - Sophie Germain prime
- 8119 - octahedral number
- 8125 - pentagonal pyramidal number
- 8128 - perfect number, harmonic divisor numberA harmonic divisor number or Ore number is a number whose divisors, averaged in a harmonic mean, results in an integer. The first few harmonic divisor numbers are 1, 6, 28, 140, 270, 496, 672, 1638, 2970, 6200, 8128, 8190 Three of these listed are also pe, triangular number
- 8190 - harmonic divisor number
- 8191 - Mersenne primeIn mathematics, a Mersenne prime is a prime number that is one less than a power of two. For example, 3 4 − 1 22 − 1 is a Mersenne prime; so is 7 8 − 1 23 − 1. On the other hand, 15 16 − 1 24 − 1, for example, is not a
- 8192 - power of twoIn mathematics, a power of two is any of the nonnegative integer powers of the number two; in other words, two times itself a certain number of times. Note that one is a power (the zeroth power) of two. Written in binary, a power of two always has the for
- 8243 - Sophie Germain prime
- 8256 - triangular number
- 8257 - sum of the squares of the first fourteen primes
- 8269 - cuban primeA cuban prime is a prime number that is a solution to one of two different specific equations involving third powers of x and y''. The first of these equations is and the first few cuban primes from this equation are 7, 19, 37, 61, 127, 271, 331, 397, 547 of the form x = y + 1
- 8273 - Sophie Germain prime
- 8281 - sum of the cubes of the first thirteen integers, nonagonal numberA nonagonal number or enneagonal number is a figurate number that represents a nonagon. The nonagonal number for n is given by the formula: The first few nonagonal numbers are:
- 1, 9, 24, 46, 75, 111, 154, 204, 261, 325, 396, 474, 559, 651, 750, 856, 969
- 8321 - super-Poulet numberA super-Poulet number is a Poulet number whose every divisor d divides 2''d 2. For example 341 is a super-Poulet number: it has positive divisors {1, 11, 31, 341} and we have:
- (211 2) / 11 2046 / 11 186 :(231 2) / 31 2147483646 / 31 69273666 :(2341 2) /
- 8326 - decagonal numberA decagonal number is a figurate number that represents a decagon. The decagonal number for n is given by the formula 4''n''2 3''n with n > 0. The first few decagonal numbers are 1, 10, 27, 52, 85, 126, 175, 232, 297, 370, 451, 540, 637, 742, 855, 976, 11
- 8385 - triangular number
- 8436 - tetrahedral numberA tetrahedral number or triangular pyramidal number is a figurate number that represents a pyramid with a base and three sides, that is, a tetrahedron. The tetrahedral number for n is the sum of the first n triangular numbers added up. The first few tetra
- 8513 - Sophie Germain prime
- 8515 - triangular number
- 8555 - square pyramidal number
- 8625 - nonagonal number
- 8646 - triangular number
- 8663 - Sophie Germain prime
- 8693 - Sophie Germain prime
- 8695 - decagonal number
- 8741 - Sophie Germain prime
- 8778 - triangular number
- 8833 - 88^2 + 33^2
- 8911 - Carmichael number, triangular number
- 8944 - sum of the cubes of the first seven primes
- 8951 - Sophie Germain prime
- 8969 - Sophie Germain prime
- 8976 - nonagonal number
