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12694052713 = 25391499943
BaseRepresentation
bin10111101001001111…
…11101111101101001
31012202200002200200111
423310213331331221
5201444134141323
65455341334321
7626366445016
oct136447757551
935680080614
1012694052713
115424509761
1225632673a1
131273ba0bc4
14885c8870d
154e466ac0d
hex2f49fdf69

12694052713 has 4 divisors (see below), whose sum is σ = 12694578048. Its totient is φ = 12693527380.

The previous prime is 12694052689. The next prime is 12694052809. The reversal of 12694052713 is 31725049621.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 12694052713 - 213 = 12694044521 is a prime.

It is a super-2 number, since 2×126940527132 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12694032713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224581 + ... + 275362.

It is an arithmetic number, because the mean of its divisors is an integer number (3173644512).

Almost surely, 212694052713 is an apocalyptic number.

It is an amenable number.

12694052713 is a deficient number, since it is larger than the sum of its proper divisors (525335).

12694052713 is an equidigital number, since it uses as much as digits as its factorization.

12694052713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525334.

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 12694052713 in words is "twelve billion, six hundred ninety-four million, fifty-two thousand, seven hundred thirteen".

Divisors: 1 25391 499943 12694052713