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12800902864 = 2430714471801
BaseRepresentation
bin10111110101111111…
…00100011011010000
31020001010011020112111
423322333210123100
5202204012342424
65514115435104
7632134610341
oct137277443320
936033136474
1012800902864
115479859872
122592bb5a94
131290072649
148961400c8
154edc25194
hex2fafe46d0

12800902864 has 40 divisors (see below), whose sum is σ = 24913558208. Its totient is φ = 6371654400.

The previous prime is 12800902861. The next prime is 12800902901. The reversal of 12800902864 is 46820900821.

It is a super-2 number, since 2×128009028642 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12800902861) 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, 7106764 + ... + 7108564.

Almost surely, 212800902864 is an apocalyptic number.

It is an amenable number.

12800902864 is a deficient number, since it is larger than the sum of its proper divisors (12112655344).

12800902864 is a wasteful number, since it uses less digits than its factorization.

12800902864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3563 (or 3557 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 12800902864 in words is "twelve billion, eight hundred million, nine hundred two thousand, eight hundred sixty-four".

Divisors: 1 2 4 8 16 307 614 1228 1447 1801 2456 2894 3602 4912 5788 7204 11576 14408 23152 28816 444229 552907 888458 1105814 1776916 2211628 2606047 3553832 4423256 5212094 7107664 8846512 10424188 20848376 41696752 800056429 1600112858 3200225716 6400451432 12800902864