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31368314845 = 571098222363
BaseRepresentation
bin11101001101101100…
…100111111111011101
32222222010000111110201
4131031230213333131
51003220242033340
622224351503501
72160223163650
oct351554477735
988863014421
1031368314845
111233766124a
1260b5227b91
132c5b9cb85a
14173806d897
15c38d1079a
hex74db27fdd

31368314845 has 16 divisors (see below), whose sum is σ = 43414081920. Its totient is φ = 21312362304.

The previous prime is 31368314819. The next prime is 31368314851. The reversal of 31368314845 is 54841386313.

It is a cyclic number.

It is not a de Polignac number, because 31368314845 - 27 = 31368314717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31368314795 and 31368314804.

It is a congruent 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, 4107367 + ... + 4114996.

It is an arithmetic number, because the mean of its divisors is an integer number (2713380120).

Almost surely, 231368314845 is an apocalyptic number.

31368314845 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31368314845 is a deficient number, since it is larger than the sum of its proper divisors (12045767075).

31368314845 is a wasteful number, since it uses less digits than its factorization.

31368314845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8222484.

The product of its digits is 829440, while the sum is 46.

The spelling of 31368314845 in words is "thirty-one billion, three hundred sixty-eight million, three hundred fourteen thousand, eight hundred forty-five".

Divisors: 1 5 7 35 109 545 763 3815 8222363 41111815 57556541 287782705 896237567 4481187835 6273662969 31368314845