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31350030608 = 2413612470841
BaseRepresentation
bin11101001100100110…
…111000000100010000
32222220211121120012202
4131030212320010100
51003201101434413
622222455542332
72156611602101
oct351446700420
988824546182
1031350030608
1112328303006
1260ab08a9a8
132c57c99390
1417358703a8
15c373ece58
hex74c9b8110

31350030608 has 40 divisors (see below), whose sum is σ = 66485416536. Its totient is φ = 14232038400.

The previous prime is 31350030557. The next prime is 31350030637. The reversal of 31350030608 is 80603005313.

It can be written as a sum of positive squares in 4 ways, for example, as 4423846144 + 26926184464 = 66512^2 + 164092^2 .

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, 1222733 + ... + 1248108.

Almost surely, 231350030608 is an apocalyptic number.

It is an amenable number.

31350030608 is an abundant number, since it is smaller than the sum of its proper divisors (35135385928).

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

31350030608 is a wasteful number, since it uses less digits than its factorization.

31350030608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470923 (or 2470917 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The spelling of 31350030608 in words is "thirty-one billion, three hundred fifty million, thirty thousand, six hundred eight".

Divisors: 1 2 4 8 13 16 26 52 61 104 122 208 244 488 793 976 1586 3172 6344 12688 2470841 4941682 9883364 19766728 32120933 39533456 64241866 128483732 150721301 256967464 301442602 513934928 602885204 1205770408 1959376913 2411540816 3918753826 7837507652 15675015304 31350030608