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57117118930 = 2510215594233
BaseRepresentation
bin110101001100011100…
…100001000111010010
312110102120221021101021
4311030130201013102
51413433440301210
642123402030054
74061262333424
oct651434410722
9173376837337
1057117118930
1122250140923
12b0a04a832a
1355034013c1
142a9ba56814
1517445e5bda
hexd4c7211d2

57117118930 has 16 divisors (see below), whose sum is σ = 102911528664. Its totient is φ = 22824466560.

The previous prime is 57117118859. The next prime is 57117118937. The reversal of 57117118930 is 3981171175.

It can be written as a sum of positive squares in 4 ways, for example, as 50752430089 + 6364688841 = 225283^2 + 79779^2 .

It is not an unprimeable number, because it can be changed into a prime (57117118937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2786907 + ... + 2807326.

Almost surely, 257117118930 is an apocalyptic number.

57117118930 is a deficient number, since it is larger than the sum of its proper divisors (45794409734).

57117118930 is a wasteful number, since it uses less digits than its factorization.

57117118930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5595261.

The product of its (nonzero) digits is 52920, while the sum is 43.

The spelling of 57117118930 in words is "fifty-seven billion, one hundred seventeen million, one hundred eighteen thousand, nine hundred thirty".

Divisors: 1 2 5 10 1021 2042 5105 10210 5594233 11188466 27971165 55942330 5711711893 11423423786 28558559465 57117118930