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56732660 = 2252836633
BaseRepresentation
bin1101100001101…
…0101111110100
310221202022120122
43120122233310
5104010421120
65343551112
71256135225
oct330325764
9127668518
1056732660
112a02a0a6
1216bbb498
13b9a4a2a
14776b24c
154ea9a25
hex361abf4

56732660 has 12 divisors (see below), whose sum is σ = 119138628. Its totient is φ = 22693056.

The previous prime is 56732593. The next prime is 56732677. The reversal of 56732660 is 6623765.

It can be written as a sum of positive squares in 2 ways, for example, as 15413476 + 41319184 = 3926^2 + 6428^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 56732660.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1418297 + ... + 1418336.

It is an arithmetic number, because the mean of its divisors is an integer number (9928219).

Almost surely, 256732660 is an apocalyptic number.

It is an amenable number.

56732660 is an abundant number, since it is smaller than the sum of its proper divisors (62405968).

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

56732660 is a wasteful number, since it uses less digits than its factorization.

56732660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2836642 (or 2836640 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 56732660 is about 7532.1086025097. The cubic root of 56732660 is about 384.2474985046.

The spelling of 56732660 in words is "fifty-six million, seven hundred thirty-two thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 2836633 5673266 11346532 14183165 28366330 56732660