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56755900 = 22522919571
BaseRepresentation
bin1101100010000…
…0011010111100
310221210111110101
43120200122330
5104012142100
65344250444
71256263045
oct330403274
9127714411
1056755900
112a045603
1217010a24
13b9b2496
1477758cc
154eb186a
hex36206bc

56755900 has 36 divisors (see below), whose sum is σ = 127413720. Its totient is φ = 21918400.

The previous prime is 56755883. The next prime is 56755913. The reversal of 56755900 is 955765.

It is a self number, because there is not a number n which added to its sum of digits gives 56755900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6886 + ... + 12685.

It is an arithmetic number, because the mean of its divisors is an integer number (3539270).

Almost surely, 256755900 is an apocalyptic number.

56755900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56755900 is an abundant number, since it is smaller than the sum of its proper divisors (70657820).

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

56755900 is a wasteful number, since it uses less digits than its factorization.

56755900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19614 (or 19607 counting only the distinct ones).

The product of its (nonzero) digits is 47250, while the sum is 37.

The square root of 56755900 is about 7533.6511732360. The cubic root of 56755900 is about 384.2999591319.

The spelling of 56755900 in words is "fifty-six million, seven hundred fifty-five thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 29 50 58 100 116 145 290 580 725 1450 2900 19571 39142 78284 97855 195710 391420 489275 567559 978550 1135118 1957100 2270236 2837795 5675590 11351180 14188975 28377950 56755900