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57288764 = 22135971263
BaseRepresentation
bin1101101010001…
…0100000111100
310222210120102002
43122202200330
5104131220024
65403521432
71263642431
oct332424074
9128716362
1057288764
112a379995
1217229278
13bb3aba0
147873b88
1550696ae
hex36a283c

57288764 has 48 divisors (see below), whose sum is σ = 111767040. Its totient is φ = 25529280.

The previous prime is 57288739. The next prime is 57288773. The reversal of 57288764 is 46788275.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217697 + ... + 217959.

It is an arithmetic number, because the mean of its divisors is an integer number (2328480).

Almost surely, 257288764 is an apocalyptic number.

It is an amenable number.

57288764 is a deficient number, since it is larger than the sum of its proper divisors (54478276).

57288764 is a wasteful number, since it uses less digits than its factorization.

57288764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 408 counting only the distinct ones).

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

The square root of 57288764 is about 7568.9341389657. The cubic root of 57288764 is about 385.4989068130.

The spelling of 57288764 in words is "fifty-seven million, two hundred eighty-eight thousand, seven hundred sixty-four".

Divisors: 1 2 4 13 26 52 59 71 118 142 236 263 284 526 767 923 1052 1534 1846 3068 3419 3692 4189 6838 8378 13676 15517 16756 18673 31034 37346 54457 62068 74692 108914 201721 217828 242749 403442 485498 806884 970996 1101707 2203414 4406828 14322191 28644382 57288764