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15157012 = 2213291481
BaseRepresentation
bin111001110100…
…011100010100
31001112001111211
4321310130110
512340011022
61300511204
7242555353
oct71643424
931461454
1015157012
118612762
1250ab504
1331a8c60
14202799a
1514e5e77
hexe74714

15157012 has 12 divisors (see below), whose sum is σ = 28565236. Its totient is φ = 6995520.

The previous prime is 15156989. The next prime is 15157031. The reversal of 15157012 is 21075151.

15157012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5447556 + 9709456 = 2334^2 + 3116^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145689 + ... + 145792.

Almost surely, 215157012 is an apocalyptic number.

It is an amenable number.

15157012 is a deficient number, since it is larger than the sum of its proper divisors (13408224).

15157012 is a wasteful number, since it uses less digits than its factorization.

15157012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291498 (or 291496 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 22.

The square root of 15157012 is about 3893.2007397513. The cubic root of 15157012 is about 247.4787221105.

The spelling of 15157012 in words is "fifteen million, one hundred fifty-seven thousand, twelve".

Divisors: 1 2 4 13 26 52 291481 582962 1165924 3789253 7578506 15157012