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31368270930 = 2351045609031
BaseRepresentation
bin11101001101101100…
…011101010001010010
32222222002221021020020
4131031230131101102
51003220234132210
622224350524310
72160222621633
oct351554352122
988862837206
1031368270930
1112337631257
1260b5206696
132c5b9b4879
14173805b88a
15c38d02770
hex74db1d452

31368270930 has 16 divisors (see below), whose sum is σ = 75283850304. Its totient is φ = 8364872240.

The previous prime is 31368270929. The next prime is 31368270961. The reversal of 31368270930 is 3907286313.

It is a happy number.

It is a super-2 number, since 2×313682709302 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522804486 + ... + 522804545.

It is an arithmetic number, because the mean of its divisors is an integer number (4705240644).

Almost surely, 231368270930 is an apocalyptic number.

31368270930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31368270930 is an abundant number, since it is smaller than the sum of its proper divisors (43915579374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31368270930 is a wasteful number, since it uses less digits than its factorization.

31368270930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045609041.

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 31368270930 in words is "thirty-one billion, three hundred sixty-eight million, two hundred seventy thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1045609031 2091218062 3136827093 5228045155 6273654186 10456090310 15684135465 31368270930