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31013641234 = 241378215137
BaseRepresentation
bin11100111000100011…
…101001110000010010
32222001101122012202001
4130320203221300102
51002003443004414
622125241544214
72145355413052
oct347043516022
988041565661
1031013641234
1112175434764
1260164a506a
132c0339a304
141702d07562
15c17b02074
hex7388e9c12

31013641234 has 8 divisors (see below), whose sum is σ = 47655107388. Its totient is φ = 15128605440.

The previous prime is 31013641199. The next prime is 31013641261. The reversal of 31013641234 is 43214631013.

It can be written as a sum of positive squares in 2 ways, for example, as 30472939225 + 540702009 = 174565^2 + 23253^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189107487 + ... + 189107650.

Almost surely, 231013641234 is an apocalyptic number.

31013641234 is a deficient number, since it is larger than the sum of its proper divisors (16641466154).

31013641234 is a wasteful number, since it uses less digits than its factorization.

31013641234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378215180.

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 31013641234 in words is "thirty-one billion, thirteen million, six hundred forty-one thousand, two hundred thirty-four".

Divisors: 1 2 41 82 378215137 756430274 15506820617 31013641234