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12707921375 = 53101663371
BaseRepresentation
bin10111101010111001…
…10111110111011111
31012210122012021220122
423311130313313133
5202011211441000
65500554505155
7626625356312
oct136534676737
935718167818
1012707921375
115431321466
122567a351bb
131276a18606
14887a58979
154e59aa085
hex2f5737ddf

12707921375 has 8 divisors (see below), whose sum is σ = 15859486032. Its totient is φ = 10166337000.

The previous prime is 12707921329. The next prime is 12707921393. The reversal of 12707921375 is 57312970721.

It is not a de Polignac number, because 12707921375 - 218 = 12707659231 is a prime.

It is a super-2 number, since 2×127079213752 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 50831561 + ... + 50831810.

It is an arithmetic number, because the mean of its divisors is an integer number (1982435754).

Almost surely, 212707921375 is an apocalyptic number.

12707921375 is a deficient number, since it is larger than the sum of its proper divisors (3151564657).

12707921375 is an equidigital number, since it uses as much as digits as its factorization.

12707921375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101663386 (or 101663376 counting only the distinct ones).

The product of its (nonzero) digits is 185220, while the sum is 44.

The spelling of 12707921375 in words is "twelve billion, seven hundred seven million, nine hundred twenty-one thousand, three hundred seventy-five".

Divisors: 1 5 25 125 101663371 508316855 2541584275 12707921375