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12868056 = 2332313571
BaseRepresentation
bin110001000101…
…100111011000
3220012202122200
4301011213120
511243234211
61135450200
7214243125
oct61054730
926182580
1012868056
117299a63
124386960
132887146
1419cd74c
1511e2b56
hexc459d8

12868056 has 48 divisors (see below), whose sum is σ = 35023560. Its totient is φ = 4268160.

The previous prime is 12868039. The next prime is 12868103. The reversal of 12868056 is 65086821.

It is a happy number.

12868056 is nontrivially palindromic in base 5.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12868056.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22251 + ... + 22821.

Almost surely, 212868056 is an apocalyptic number.

It is an amenable number.

12868056 is an abundant number, since it is smaller than the sum of its proper divisors (22155504).

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

12868056 is a wasteful number, since it uses less digits than its factorization.

12868056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896 (or 889 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 12868056 is about 3587.2072702870. The cubic root of 12868056 is about 234.3352634500.

The spelling of 12868056 in words is "twelve million, eight hundred sixty-eight thousand, fifty-six".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 313 571 626 939 1142 1252 1713 1878 2284 2504 2817 3426 3756 4568 5139 5634 6852 7512 10278 11268 13704 20556 22536 41112 178723 357446 536169 714892 1072338 1429784 1608507 2144676 3217014 4289352 6434028 12868056