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12707065357 = 71815295051
BaseRepresentation
bin10111101010110011…
…00110111000001101
31012210120120210200021
423311121212320031
5202011002042412
65500524302141
7626615162530
oct136531467015
935716523607
1012707065357
115430897308
1225676a1951
1312767a8aac
148878b4a17
154e588b607
hex2f5666e0d

12707065357 has 4 divisors (see below), whose sum is σ = 14522360416. Its totient is φ = 10891770300.

The previous prime is 12707065337. The next prime is 12707065373. The reversal of 12707065357 is 75356070721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75356070721 = 312430840991.

It is a cyclic number.

It is not a de Polignac number, because 12707065357 - 227 = 12572847629 is a prime.

It is a super-2 number, since 2×127070653572 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12707065337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 907647519 + ... + 907647532.

It is an arithmetic number, because the mean of its divisors is an integer number (3630590104).

Almost surely, 212707065357 is an apocalyptic number.

It is an amenable number.

12707065357 is a deficient number, since it is larger than the sum of its proper divisors (1815295059).

12707065357 is an equidigital number, since it uses as much as digits as its factorization.

12707065357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815295058.

The product of its (nonzero) digits is 308700, while the sum is 43.

The spelling of 12707065357 in words is "twelve billion, seven hundred seven million, sixty-five thousand, three hundred fifty-seven".

Divisors: 1 7 1815295051 12707065357