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31067267912 = 2310126172
BaseRepresentation
bin11100111011110000…
…001110001101001000
32222012010112201201022
4130323300032031020
51002111210033122
622134435212012
72146606264052
oct347360161510
988163481638
1031067267912
11121a273222a
126030447008
132c11525385
14170a0a68d2
15c1c696642
hex73bc0e348

31067267912 has 36 divisors (see below), whose sum is σ = 58929090315. Its totient is φ = 15354908800.

The previous prime is 31067267887. The next prime is 31067267941. The reversal of 31067267912 is 21976276013.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 14654070916 + 16413196996 = 121054^2 + 128114^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=124634.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 50351828 + ... + 50352444.

Almost surely, 231067267912 is an apocalyptic number.

It is an amenable number.

31067267912 is a deficient number, since it is larger than the sum of its proper divisors (27861822403).

31067267912 is an frugal number, since it uses more digits than its factorization.

31067267912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442 (or 720 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 44.

The spelling of 31067267912 in words is "thirty-one billion, sixty-seven million, two hundred sixty-seven thousand, nine hundred twelve".

Divisors: 1 2 4 8 101 202 404 617 808 1234 2468 4936 10201 20402 40804 62317 81608 124634 249268 380689 498536 761378 1522756 3045512 6294017 12588034 25176068 38449589 50352136 76899178 153798356 307596712 3883408489 7766816978 15533633956 31067267912