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57694271931 = 327878145457
BaseRepresentation
bin110101101110110110…
…001011100110111011
312111220210221200110100
4311232312023212323
51421124213200211
642300540250443
74111501135302
oct655666134673
9174823850410
1057694271931
1122516a0447a
12b221840a23
135595b5aa5a
142b14573439
15177a0ee156
hexd6ed8b9bb

57694271931 has 12 divisors (see below), whose sum is σ = 83442071752. Its totient is φ = 38413970496.

The previous prime is 57694271927. The next prime is 57694271959. The reversal of 57694271931 is 13917249675.

57694271931 is a `hidden beast` number, since 576 + 9 + 4 + 27 + 19 + 31 = 666.

It is not a de Polignac number, because 57694271931 - 22 = 57694271927 is a prime.

It is a super-2 number, since 2×576942719312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57694271911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4065646 + ... + 4079811.

Almost surely, 257694271931 is an apocalyptic number.

57694271931 is a deficient number, since it is larger than the sum of its proper divisors (25747799821).

57694271931 is a wasteful number, since it uses less digits than its factorization.

57694271931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8146250 (or 8146247 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The spelling of 57694271931 in words is "fifty-seven billion, six hundred ninety-four million, two hundred seventy-one thousand, nine hundred thirty-one".

Divisors: 1 3 9 787 2361 7083 8145457 24436371 73309113 6410474659 19231423977 57694271931