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13012857924 = 22311803912263
BaseRepresentation
bin11000001111010000…
…00111010001000100
31020120212222200012220
430013220013101010
5203122242423144
65551130412340
7640320316203
oct140750072104
936525880186
1013012857924
115578467840
122631b910b0
1312c4c54341
148b635523a
15512641919
hex307a07444

13012857924 has 48 divisors (see below), whose sum is σ = 33130460160. Its totient is φ = 3942478240.

The previous prime is 13012857911. The next prime is 13012858007. The reversal of 13012857924 is 42975821031.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1055017 + ... + 1067279.

It is an arithmetic number, because the mean of its divisors is an integer number (690217920).

Almost surely, 213012857924 is an apocalyptic number.

It is an amenable number.

13012857924 is an abundant number, since it is smaller than the sum of its proper divisors (20117602236).

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

13012857924 is a wasteful number, since it uses less digits than its factorization.

13012857924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20320 (or 20318 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 13012857924 in words is "thirteen billion, twelve million, eight hundred fifty-seven thousand, nine hundred twenty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 8039 12263 16078 24117 24526 32156 36789 48234 49052 73578 88429 96468 134893 147156 176858 265287 269786 353716 404679 530574 539572 809358 1061148 1618716 98582257 197164514 295746771 394329028 591493542 1084404827 1182987084 2168809654 3253214481 4337619308 6506428962 13012857924