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12695675794 = 26347837897
BaseRepresentation
bin10111101001011100…
…01010001110010010
31012202210011011010121
423310232022032102
5202000043111134
65455440220454
7626416315024
oct136456121622
935683134117
1012695675794
11542541814a
12256390a72a
13127431b8c9
1488618c014
154e488bab4
hex2f4b8a392

12695675794 has 4 divisors (see below), whose sum is σ = 19043513694. Its totient is φ = 6347837896.

The previous prime is 12695675771. The next prime is 12695675843. The reversal of 12695675794 is 49757659621.

12695675794 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49757659621 = 166992979679.

It can be written as a sum of positive squares in only one way, i.e., 9544313025 + 3151362769 = 97695^2 + 56137^2 .

It is a super-2 number, since 2×126956757942 (a number of 21 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 3173918947 + ... + 3173918950.

Almost surely, 212695675794 is an apocalyptic number.

12695675794 is a deficient number, since it is larger than the sum of its proper divisors (6347837900).

12695675794 is an equidigital number, since it uses as much as digits as its factorization.

12695675794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6347837899.

The product of its digits is 28576800, while the sum is 61.

The spelling of 12695675794 in words is "twelve billion, six hundred ninety-five million, six hundred seventy-five thousand, seven hundred ninety-four".

Divisors: 1 2 6347837897 12695675794