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57274868 = 2274149891
BaseRepresentation
bin1101101001111…
…1000111110100
310222202212100102
43122133013310
5104130243433
65403333232
71263554060
oct332370764
9128685312
1057274868
112a36a502
1217221218
13bb34771
14786caa0
1550654e8
hex369f1f4

57274868 has 24 divisors (see below), whose sum is σ = 117345984. Its totient is φ = 23947200.

The previous prime is 57274849. The next prime is 57274871. The reversal of 57274868 is 86847275.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

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, 23798 + ... + 26093.

It is an arithmetic number, because the mean of its divisors is an integer number (4889416).

Almost surely, 257274868 is an apocalyptic number.

It is an amenable number.

57274868 is an abundant number, since it is smaller than the sum of its proper divisors (60071116).

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

57274868 is a wasteful number, since it uses less digits than its factorization.

57274868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49943 (or 49941 counting only the distinct ones).

The product of its digits is 752640, while the sum is 47.

The square root of 57274868 is about 7568.0161204902. The cubic root of 57274868 is about 385.4677353370.

The spelling of 57274868 in words is "fifty-seven million, two hundred seventy-four thousand, eight hundred sixty-eight".

Divisors: 1 2 4 7 14 28 41 82 164 287 574 1148 49891 99782 199564 349237 698474 1396948 2045531 4091062 8182124 14318717 28637434 57274868