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31294190125 = 531129997589
BaseRepresentation
bin11101001001010001…
…110111001000101101
32222202221112120110201
4131021101313020231
51003042303041000
622213143033501
72155333140622
oct351121671055
988687476421
1031294190125
11122a9833250
12609443b891
132c49547783
14172c296349
15c3256c96a
hex74947722d

31294190125 has 32 divisors (see below), whose sum is σ = 42625440000. Its totient is φ = 22748824000.

The previous prime is 31294190107. The next prime is 31294190183. The reversal of 31294190125 is 52109149213.

It is not a de Polignac number, because 31294190125 - 227 = 31159972397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4119831 + ... + 4127419.

It is an arithmetic number, because the mean of its divisors is an integer number (1332045000).

Almost surely, 231294190125 is an apocalyptic number.

It is an amenable number.

31294190125 is a deficient number, since it is larger than the sum of its proper divisors (11331249875).

31294190125 is a wasteful number, since it uses less digits than its factorization.

31294190125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10614 (or 10604 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 31294190125 in words is "thirty-one billion, two hundred ninety-four million, one hundred ninety thousand, one hundred twenty-five".

Divisors: 1 5 11 25 55 125 275 1375 2999 7589 14995 32989 37945 74975 83479 164945 189725 374875 417395 824725 948625 2086975 4123625 10434875 22759411 113797055 250353521 568985275 1251767605 2844926375 6258838025 31294190125