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57189588 = 22341116239
BaseRepresentation
bin1101101000101…
…0010011010100
310222121112100220
43122022103110
5104120031323
65401434340
71263050331
oct332122324
9128545326
1057189588
112a311425
121719b9b0
13bb049c1
147849988
15504a0e3
hex368a4d4

57189588 has 24 divisors (see below), whose sum is σ = 136698240. Its totient is φ = 18598080.

The previous prime is 57189557. The next prime is 57189599. The reversal of 57189588 is 88598175.

It is a self number, because there is not a number n which added to its sum of digits gives 57189588.

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, 57628 + ... + 58611.

It is an arithmetic number, because the mean of its divisors is an integer number (5695760).

Almost surely, 257189588 is an apocalyptic number.

It is an amenable number.

57189588 is an abundant number, since it is smaller than the sum of its proper divisors (79508652).

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

57189588 is a wasteful number, since it uses less digits than its factorization.

57189588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116287 (or 116285 counting only the distinct ones).

The product of its digits is 806400, while the sum is 51.

The square root of 57189588 is about 7562.3797841685. The cubic root of 57189588 is about 385.2763249302.

The spelling of 57189588 in words is "fifty-seven million, one hundred eighty-nine thousand, five hundred eighty-eight".

Divisors: 1 2 3 4 6 12 41 82 123 164 246 492 116239 232478 348717 464956 697434 1394868 4765799 9531598 14297397 19063196 28594794 57189588