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57384860 = 225131712983
BaseRepresentation
bin1101101011100…
…1111110011100
310222222110020012
43122321332130
5104142303420
65405542352
71264522541
oct332717634
9128873205
1057384860
112a435105
12172749b8
13bb72850
14789abc8
155087dc5
hex36b9f9c

57384860 has 48 divisors (see below), whose sum is σ = 137422656. Its totient is φ = 19940352.

The previous prime is 57384853. The next prime is 57384863. The reversal of 57384860 is 6848375.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57384863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2072 + ... + 10911.

It is an arithmetic number, because the mean of its divisors is an integer number (2862972).

Almost surely, 257384860 is an apocalyptic number.

It is an amenable number.

57384860 is an abundant number, since it is smaller than the sum of its proper divisors (80037796).

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

57384860 is a wasteful number, since it uses less digits than its factorization.

57384860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13022 (or 13020 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 57384860 is about 7575.2795327961. The cubic root of 57384860 is about 385.7143313084.

The spelling of 57384860 in words is "fifty-seven million, three hundred eighty-four thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 13 17 20 26 34 52 65 68 85 130 170 221 260 340 442 884 1105 2210 4420 12983 25966 51932 64915 129830 168779 220711 259660 337558 441422 675116 843895 882844 1103555 1687790 2207110 2869243 3375580 4414220 5738486 11476972 14346215 28692430 57384860