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12712575236 = 2289269132749
BaseRepresentation
bin10111101011011101…
…01000000100000100
31012210221221201210212
423311232220010010
5202013404401421
65501242334552
7630013051364
oct136556500404
935727851725
1012712575236
115433a0aa29
1225694ba458
13127798798a
1488850a9a4
154e60c8e5b
hex2f5ba8104

12712575236 has 24 divisors (see below), whose sum is σ = 22580775000. Its totient is φ = 6261457664.

The previous prime is 12712575193. The next prime is 12712575247. The reversal of 12712575236 is 63257521721.

It can be written as a sum of positive squares in 4 ways, for example, as 211993600 + 12500581636 = 14560^2 + 111806^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12712575193 and 12712575202.

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, 29390 + ... + 162138.

It is an arithmetic number, because the mean of its divisors is an integer number (940865625).

Almost surely, 212712575236 is an apocalyptic number.

It is an amenable number.

12712575236 is a deficient number, since it is larger than the sum of its proper divisors (9868199764).

12712575236 is a wasteful number, since it uses less digits than its factorization.

12712575236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133111 (or 133109 counting only the distinct ones).

The product of its digits is 176400, while the sum is 41.

The spelling of 12712575236 in words is "twelve billion, seven hundred twelve million, five hundred seventy-five thousand, two hundred thirty-six".

Divisors: 1 2 4 89 178 269 356 538 1076 23941 47882 95764 132749 265498 530996 11814661 23629322 35709481 47258644 71418962 142837924 3178143809 6356287618 12712575236