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31955653113 = 339726830943
BaseRepresentation
bin11101110000101101…
…001001000111111001
310001111001012101002220
4131300231021013321
51010421121344423
622402532314253
72210614366266
oct356055110771
9101431171086
1031955653113
111260915117a
126239a72989
1330235b31a7
14179207c26d
15c7067b9e3
hex770b491f9

31955653113 has 8 divisors (see below), whose sum is σ = 42714862848. Its totient is φ = 21250106064.

The previous prime is 31955653097. The next prime is 31955653153. The reversal of 31955653113 is 31135655913.

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

It is not a de Polignac number, because 31955653113 - 24 = 31955653097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31955653153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13414281 + ... + 13416662.

It is an arithmetic number, because the mean of its divisors is an integer number (5339357856).

Almost surely, 231955653113 is an apocalyptic number.

It is an amenable number.

31955653113 is a deficient number, since it is larger than the sum of its proper divisors (10759209735).

31955653113 is a wasteful number, since it uses less digits than its factorization.

31955653113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26831343.

The product of its digits is 182250, while the sum is 42.

The spelling of 31955653113 in words is "thirty-one billion, nine hundred fifty-five million, six hundred fifty-three thousand, one hundred thirteen".

Divisors: 1 3 397 1191 26830943 80492829 10651884371 31955653113