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56694231 = 32113791511
BaseRepresentation
bin1101100001000…
…1010111010111
310221200100212100
43120101113113
5104003203411
65343053143
71255615206
oct330212727
9127610770
1056694231
112a003240
1216ba11b3
13b9903a9
14775b23d
154e9d456
hex36115d7

56694231 has 24 divisors (see below), whose sum is σ = 89631360. Its totient is φ = 34246800.

The previous prime is 56694227. The next prime is 56694251. The reversal of 56694231 is 13249665.

It is a happy number.

56694231 is a `hidden beast` number, since 566 + 94 + 2 + 3 + 1 = 666.

It is not a de Polignac number, because 56694231 - 22 = 56694227 is a prime.

It is a super-2 number, since 2×566942312 = 6428471657362722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56694251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36766 + ... + 38276.

It is an arithmetic number, because the mean of its divisors is an integer number (3734640).

Almost surely, 256694231 is an apocalyptic number.

56694231 is a deficient number, since it is larger than the sum of its proper divisors (32937129).

56694231 is a wasteful number, since it uses less digits than its factorization.

56694231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907 (or 1904 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 56694231 is about 7529.5571582929. The cubic root of 56694231 is about 384.1607196695.

The spelling of 56694231 in words is "fifty-six million, six hundred ninety-four thousand, two hundred thirty-one".

Divisors: 1 3 9 11 33 99 379 1137 1511 3411 4169 4533 12507 13599 16621 37521 49863 149589 572669 1718007 5154021 6299359 18898077 56694231