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31160445342 = 2313419743729
BaseRepresentation
bin11101000001010011…
…101010100110011110
32222102121212122010020
4131001103222212132
51002304033222332
622152004253010
72152120262265
oct350123524636
988377778106
1031160445342
1112240293874
1260576a1166
132c2791a650
1417185dd5dc
15c2594e82c
hex7414ea99e

31160445342 has 32 divisors (see below), whose sum is σ = 68751758880. Its totient is φ = 9353978880.

The previous prime is 31160445271. The next prime is 31160445359. The reversal of 31160445342 is 24354406113.

It is a happy number.

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, 4868667 + ... + 4875062.

It is an arithmetic number, because the mean of its divisors is an integer number (2148492465).

Almost surely, 231160445342 is an apocalyptic number.

31160445342 is an abundant number, since it is smaller than the sum of its proper divisors (37591313538).

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

31160445342 is a wasteful number, since it uses less digits than its factorization.

31160445342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9743788.

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 31160445342 in words is "thirty-one billion, one hundred sixty million, four hundred forty-five thousand, three hundred forty-two".

Divisors: 1 2 3 6 13 26 39 41 78 82 123 246 533 1066 1599 3198 9743729 19487458 29231187 58462374 126668477 253336954 380005431 399492889 760010862 798985778 1198478667 2396957334 5193407557 10386815114 15580222671 31160445342