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56505284 = 22111284211
BaseRepresentation
bin1101011110001…
…1001111000100
310221022202200022
43113203033010
5103431132114
65335034312
71254200303
oct327431704
9127282608
1056505284
1129994290
1216b0b998
13b9253a4
14770c43a
154e6248e
hex35e33c4

56505284 has 12 divisors (see below), whose sum is σ = 107873808. Its totient is φ = 25684200.

The previous prime is 56505283. The next prime is 56505329. The reversal of 56505284 is 48250565.

It is not an unprimeable number, because it can be changed into a prime (56505283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642062 + ... + 642149.

It is an arithmetic number, because the mean of its divisors is an integer number (8989484).

Almost surely, 256505284 is an apocalyptic number.

It is an amenable number.

56505284 is a deficient number, since it is larger than the sum of its proper divisors (51368524).

56505284 is a wasteful number, since it uses less digits than its factorization.

56505284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284226 (or 1284224 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 56505284 is about 7516.9996674205. Note that the first 3 decimals coincide. The cubic root of 56505284 is about 383.7334757179.

The spelling of 56505284 in words is "fifty-six million, five hundred five thousand, two hundred eighty-four".

Divisors: 1 2 4 11 22 44 1284211 2568422 5136844 14126321 28252642 56505284