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57117105 = 32510312323
BaseRepresentation
bin1101100111100…
…0100110110001
310222110211221100
43121320212301
5104110221410
65400115013
71262326113
oct331704661
9128424840
1057117105
112a271a21
1217165a69
13baaaa06
14782b3b3
1550338c0
hex36789b1

57117105 has 24 divisors (see below), whose sum is σ = 99972288. Its totient is φ = 30164256.

The previous prime is 57117103. The next prime is 57117121. The reversal of 57117105 is 50171175.

It is not a de Polignac number, because 57117105 - 21 = 57117103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57117101) 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, 1527 + ... + 10796.

It is an arithmetic number, because the mean of its divisors is an integer number (4165512).

Almost surely, 257117105 is an apocalyptic number.

It is an amenable number.

57117105 is a deficient number, since it is larger than the sum of its proper divisors (42855183).

57117105 is a wasteful number, since it uses less digits than its factorization.

57117105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12437 (or 12434 counting only the distinct ones).

The product of its (nonzero) digits is 1225, while the sum is 27.

The square root of 57117105 is about 7557.5859240898. The cubic root of 57117105 is about 385.1134876545.

The spelling of 57117105 in words is "fifty-seven million, one hundred seventeen thousand, one hundred five".

Divisors: 1 3 5 9 15 45 103 309 515 927 1545 4635 12323 36969 61615 110907 184845 554535 1269269 3807807 6346345 11423421 19039035 57117105