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12890352 = 2431715797
BaseRepresentation
bin110001001011…
…000011110000
3220020220020110
4301023003300
511244442402
61140141320
7214365126
oct61130360
926226213
1012890352
117304792
124397840
132894337
1419d7916
1511e956c
hexc4b0f0

12890352 has 40 divisors (see below), whose sum is σ = 35261136. Its totient is φ = 4043776.

The previous prime is 12890323. The next prime is 12890363. The reversal of 12890352 is 25309821.

It is a happy number.

It is a super-2 number, since 2×128903522 = 332322349367808, which contains 22 as substring.

It is a congruent number.

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, 7083 + ... + 8714.

Almost surely, 212890352 is an apocalyptic number.

12890352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12890352 is an abundant number, since it is smaller than the sum of its proper divisors (22370784).

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

12890352 is a wasteful number, since it uses less digits than its factorization.

12890352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15825 (or 15819 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 12890352 is about 3590.3136353249. The cubic root of 12890352 is about 234.4705266777.

The spelling of 12890352 in words is "twelve million, eight hundred ninety thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 17 24 34 48 51 68 102 136 204 272 408 816 15797 31594 47391 63188 94782 126376 189564 252752 268549 379128 537098 758256 805647 1074196 1611294 2148392 3222588 4296784 6445176 12890352