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6808623628964 = 2217404924728777
BaseRepresentation
bin110001100010100000110…
…0101111100001010100100
3220002220020200120000220012
41203011001211330022210
51343023030122111324
622251501041425352
71301623016644463
oct143050145741244
926086220500805
106808623628964
1121955805a1233
1291b68233b258
133a5086acc2b1
141977795969da
15bc1943ae20e
hex6314197c2a4

6808623628964 has 24 divisors (see below), whose sum is σ = 12619095413400. Its totient is φ = 3203266727936.

The previous prime is 6808623628943. The next prime is 6808623628993. The reversal of 6808623628964 is 4698263268086.

It can be written as a sum of positive squares in 4 ways, for example, as 24474099364 + 6784149529600 = 156442^2 + 2604640^2 .

It is a Harshad number since it is a multiple of its sum of digits (68).

It is a junction number, because it is equal to n+sod(n) for n = 6808623628894 and 6808623628903.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12089057 + ... + 12639720.

It is an arithmetic number, because the mean of its divisors is an integer number (525795642225).

Almost surely, 26808623628964 is an apocalyptic number.

It is an amenable number.

6808623628964 is a deficient number, since it is larger than the sum of its proper divisors (5810471784436).

6808623628964 is a wasteful number, since it uses less digits than its factorization.

6808623628964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24732847 (or 24732845 counting only the distinct ones).

The product of its (nonzero) digits is 286654464, while the sum is 68.

The spelling of 6808623628964 in words is "six trillion, eight hundred eight billion, six hundred twenty-three million, six hundred twenty-eight thousand, nine hundred sixty-four".

Divisors: 1 2 4 17 34 68 4049 8098 16196 68833 137666 275332 24728777 49457554 98915108 420389209 840778418 1681556836 100126818073 200253636146 400507272292 1702155907241 3404311814482 6808623628964