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57872044164 = 223111797265873
BaseRepresentation
bin110101111001011100…
…010101000010000100
312112101012110110010010
4311321130111002010
51422010220403124
642330330430220
74116060154554
oct657134250204
9175335413103
1057872044164
11225a8295380
12b271292370
1355c393191c
142b3000b164
15178aa17529
hexd79715084

57872044164 has 96 divisors (see below), whose sum is σ = 157584583296. Its totient is φ = 16335175680.

The previous prime is 57872044057. The next prime is 57872044177. The reversal of 57872044164 is 46144027875.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84732 + ... + 350604.

It is an arithmetic number, because the mean of its divisors is an integer number (1641506076).

Almost surely, 257872044164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57872044164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78792291648).

57872044164 is an abundant number, since it is smaller than the sum of its proper divisors (99712539132).

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

57872044164 is a wasteful number, since it uses less digits than its factorization.

57872044164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266005 (or 266003 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 48.

The spelling of 57872044164 in words is "fifty-seven billion, eight hundred seventy-two million, forty-four thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 11 12 17 22 33 34 44 51 66 68 97 102 132 187 194 204 291 374 388 561 582 748 1067 1122 1164 1649 2134 2244 3201 3298 4268 4947 6402 6596 9894 12804 18139 19788 36278 54417 72556 108834 217668 265873 531746 797619 1063492 1595238 2924603 3190476 4519841 5849206 8773809 9039682 11698412 13559523 17547618 18079364 25789681 27119046 35095236 49718251 51579362 54238092 77369043 99436502 103158724 149154753 154738086 198873004 283686491 298309506 309476172 438424577 567372982 596619012 851059473 876849154 1134745964 1315273731 1702118946 1753698308 2630547462 3404237892 4822670347 5261094924 9645340694 14468011041 19290681388 28936022082 57872044164