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31116194875 = 531348718457
BaseRepresentation
bin11100111110101010…
…110111010000111011
32222022112121110220001
4130332222313100323
51002211221214000
622143344013431
72151042202213
oct347652672073
988275543801
1031116194875
111221830a837
126044901277
132c1b6c623c
1417127a1243
15c21b0d46a
hex73eab743b

31116194875 has 16 divisors (see below), whose sum is σ = 38837994624. Its totient is φ = 24889761600.

The previous prime is 31116194849. The next prime is 31116194887. The reversal of 31116194875 is 57849161113.

It is not a de Polignac number, because 31116194875 - 213 = 31116186683 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1676647 + ... + 1695103.

It is an arithmetic number, because the mean of its divisors is an integer number (2427374664).

Almost surely, 231116194875 is an apocalyptic number.

31116194875 is a deficient number, since it is larger than the sum of its proper divisors (7721799749).

31116194875 is a wasteful number, since it uses less digits than its factorization.

31116194875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31959 (or 31949 counting only the distinct ones).

The product of its digits is 181440, while the sum is 46.

The spelling of 31116194875 in words is "thirty-one billion, one hundred sixteen million, one hundred ninety-four thousand, eight hundred seventy-five".

Divisors: 1 5 25 125 13487 18457 67435 92285 337175 461425 1685875 2307125 248929559 1244647795 6223238975 31116194875