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57085752 = 2336138993
BaseRepresentation
bin1101100111000…
…0111100111000
310222102020221010
43121300330320
5104103221002
65355313520
71262135523
oct331607470
9128366833
1057085752
112a250409
121714b8a0
13ba99669
14781dbba
15502946c
hex3670f38

57085752 has 32 divisors (see below), whose sum is σ = 145057680. Its totient is φ = 18716160.

The previous prime is 57085751. The next prime is 57085753. The reversal of 57085752 is 25758075.

It is an interprime number because it is at equal distance from previous prime (57085751) and next prime (57085753).

It is a self number, because there is not a number n which added to its sum of digits gives 57085752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57085751) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18033 + ... + 20960.

Almost surely, 257085752 is an apocalyptic number.

It is an amenable number.

57085752 is an abundant number, since it is smaller than the sum of its proper divisors (87971928).

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

57085752 is a wasteful number, since it uses less digits than its factorization.

57085752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39063 (or 39059 counting only the distinct ones).

The product of its (nonzero) digits is 98000, while the sum is 39.

The square root of 57085752 is about 7555.5113658838. The cubic root of 57085752 is about 385.0430086321.

The spelling of 57085752 in words is "fifty-seven million, eighty-five thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 61 122 183 244 366 488 732 1464 38993 77986 116979 155972 233958 311944 467916 935832 2378573 4757146 7135719 9514292 14271438 19028584 28542876 57085752