8000 (number)


8000 is the natural number following 7999 and preceding 8001.
8000 is the cube of 20, as well as the sum of four consecutive integers cubed, 113 + 123 + 133 + 143.
The fourteen 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] to 8099

8001triangular number8002Mertens function zero8011Mertens function zero, super-prime8012 – Mertens function zero8017 – Mertens function zero8021 – Mertens function zero8039safe prime8059super-prime8069Sophie Germain prime8093Sophie Germain prime

8100 to 8199

8100 = 9028101super-prime8111 – Sophie Germain prime8117super-prime, balanced prime8119octahedral number; 8119/5741 ≈ √28125pentagonal pyramidal number8128perfect number, harmonic divisor number, 127th triangular number, 64th hexagonal number, eighth 292-gonal number, fourth 1356-gonal number8147safe prime8189highly cototient number8190harmonic divisor number8191Mersenne prime8192 = 213

8200 to 8299

8208base 10 narcissistic number as 84 + 24 + 04 + 84 = 82088219twin prime with 82218221super-prime, twin prime with 82198233super-prime, centered heptagonal number8243Sophie Germain prime8256triangular number8257 – sum of the squares of the first fourteen primes8269cuban prime of the form x = y + 18273 – Sophie Germain prime8281 = 912, sum of the cubes of the first thirteen integers, nonagonal number, centered octagonal number8287super-prime

8300 to 8399

8321super-Poulet number8326decagonal number8345 - smallest pandigital number in base 68361Leyland number8363prime number, number of prime numbers having five digits8377super-prime8385 – triangular number8389super-prime, twin prime

8400 to 8499

8423 – safe prime8436tetrahedral number8437 - star number8464 = 922

8500 to 8599

8513 – Sophie Germain prime, super-prime8515 – triangular number8521sexy prime with 85278527super-prime, sexy prime with 85218543 – safe prime8555square pyramidal number8558Large Schröder number8576centered heptagonal number8581super-prime

8600 to 8699

8625nonagonal number8646 – triangular number8649 = 932, centered octagonal number8658 - sum of the first four perfect numbers and the product of the culturally significant 666 and 138663 – Sophie Germain prime8693 – Sophie Germain prime8695decagonal number8699 – safe prime

8700 to 8799

8712smallest number that is divisible by its reverse: 8712 = 4 × 2178 8713balanced prime8719super-prime8741 – Sophie Germain prime8747 – safe prime, balanced prime, super-prime87483-smooth number 8751perfect totient number8760 - the number of hours in a non-leap year; 365 × 248761 – super-prime8778 – triangular number8783 – safe prime8784 - the number of hours in a leap year; 366 × 24

8800 to 8899

8801magic constant of n × n normal magic square and n-Queens Problem for n = 26.8807super-prime, sum of eleven consecutive primes 8819 – safe prime8833 = 882 + 3328836 = 9428839 – sum of twenty-three consecutive primes 8849super-prime8855 – member of a Ruth-Aaron pair with 88568856 – member of a Ruth-Aaron pair with 88558888 - repdigit8893 - star prime

8900 to 8999

8911Carmichael number, triangular number8923super-prime8926 – centered heptagonal number8933 – the 1,111th prime number8944 – sum of the cubes of the first seven primes8951 – Sophie Germain prime8963 – safe prime8964 – number referring to the 1989 [Tiananmen Square Protests]8969 – Sophie Germain prime8976enneagonal number8999 – super-prime

Prime numbers

There are 110 prime numbers between 8000 and 9000: