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12668808 = 2331731051
BaseRepresentation
bin110000010100…
…111110001000
3212211122100010
4300110332020
511220400213
61131311520
7212453205
oct60247610
925748303
1012668808
117173299
1242ab5a0
132817549
14197acac
1511a3ac3
hexc14f88

12668808 has 32 divisors (see below), whose sum is σ = 33536160. Its totient is φ = 3974400.

The previous prime is 12668807. The next prime is 12668809. The reversal of 12668808 is 80886621.

It is an interprime number because it is at equal distance from previous prime (12668807) and next prime (12668809).

It is a super-2 number, since 2×126688082 = 320997392281728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12668807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15118 + ... + 15933.

It is an arithmetic number, because the mean of its divisors is an integer number (1048005).

Almost surely, 212668808 is an apocalyptic number.

It is an amenable number.

12668808 is an abundant number, since it is smaller than the sum of its proper divisors (20867352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12668808 is a wasteful number, since it uses less digits than its factorization.

12668808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31077 (or 31073 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 12668808 is about 3559.3269026601. The cubic root of 12668808 is about 233.1194902468.

The spelling of 12668808 in words is "twelve million, six hundred sixty-eight thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 31051 62102 93153 124204 186306 248408 372612 527867 745224 1055734 1583601 2111468 3167202 4222936 6334404 12668808