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12931751459 = 112106873979
BaseRepresentation
bin11000000101100101…
…01101111000100011
31020101020101001001202
430002302231320203
5202441012021314
65535112151415
7635314034204
oct140262557043
936336331052
1012931751459
115536700300
12260a99856b
1312b11c7453
148a96815ab
1550a4700de
hex302cade23

12931751459 has 6 divisors (see below), whose sum is σ = 14214239340. Its totient is φ = 11756137580.

The previous prime is 12931751431. The next prime is 12931751461. The reversal of 12931751459 is 95415713921.

It is a happy number.

It is not a de Polignac number, because 12931751459 - 212 = 12931747363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12931751419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53436869 + ... + 53437110.

It is an arithmetic number, because the mean of its divisors is an integer number (2369039890).

Almost surely, 212931751459 is an apocalyptic number.

12931751459 is a deficient number, since it is larger than the sum of its proper divisors (1282487881).

12931751459 is a wasteful number, since it uses less digits than its factorization.

12931751459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106874001 (or 106873990 counting only the distinct ones).

The product of its digits is 340200, while the sum is 47.

The spelling of 12931751459 in words is "twelve billion, nine hundred thirty-one million, seven hundred fifty-one thousand, four hundred fifty-nine".

Divisors: 1 11 121 106873979 1175613769 12931751459