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57485560 = 23511130649
BaseRepresentation
bin1101101101001…
…0100011111000
311000011120100211
43123102203320
5104204014220
65412040504
71265422246
oct333224370
9130146324
1057485560
112a4a3830
1217303134
13bba9632
1478c5796
1550a7b5a
hex36d28f8

57485560 has 32 divisors (see below), whose sum is σ = 141102000. Its totient is φ = 20903680.

The previous prime is 57485557. The next prime is 57485587. The reversal of 57485560 is 6558475.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a nialpdrome in base 13.

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, 64885 + ... + 65764.

Almost surely, 257485560 is an apocalyptic number.

It is an amenable number.

57485560 is an abundant number, since it is smaller than the sum of its proper divisors (83616440).

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

57485560 is a wasteful number, since it uses less digits than its factorization.

57485560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130671 (or 130667 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 57485560 is about 7581.9232388623. The cubic root of 57485560 is about 385.9398189800.

The spelling of 57485560 in words is "fifty-seven million, four hundred eighty-five thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 130649 261298 522596 653245 1045192 1306490 1437139 2612980 2874278 5225960 5748556 7185695 11497112 14371390 28742780 57485560