Search a number
-
+
12707162497 = 78716146331
BaseRepresentation
bin10111101010110011…
…11110100110000001
31012210120202201221001
423311121332212001
5202011013144442
65500530332001
7626616045661
oct136531764601
935716681831
1012707162497
115430953297
12256772a001
131276811083
148878dc1a1
154e58aa2b7
hex2f567e981

12707162497 has 4 divisors (see below), whose sum is σ = 12723309616. Its totient is φ = 12691015380.

The previous prime is 12707162491. The next prime is 12707162543. The reversal of 12707162497 is 79426170721.

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 a de Polignac number, because none of the positive numbers 2k-12707162497 is a prime.

It is a super-2 number, since 2×127071624972 (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 (12707162491) 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, 8072379 + ... + 8073952.

It is an arithmetic number, because the mean of its divisors is an integer number (3180827404).

Almost surely, 212707162497 is an apocalyptic number.

It is an amenable number.

12707162497 is a deficient number, since it is larger than the sum of its proper divisors (16147119).

12707162497 is an equidigital number, since it uses as much as digits as its factorization.

12707162497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16147118.

The product of its (nonzero) digits is 296352, while the sum is 46.

The spelling of 12707162497 in words is "twelve billion, seven hundred seven million, one hundred sixty-two thousand, four hundred ninety-seven".

Divisors: 1 787 16146331 12707162497