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12613188886 = 26306594443
BaseRepresentation
bin10111011111100110…
…11111110100010110
31012120000221101100221
423233303133310112
5201312434021021
65443332224554
7624365223304
oct135763376426
935500841327
1012613188886
1153928a8551
12254016b15a
1312601ca59c
14879239274
154dc4e6241
hex2efcdfd16

12613188886 has 4 divisors (see below), whose sum is σ = 18919783332. Its totient is φ = 6306594442.

The previous prime is 12613188883. The next prime is 12613188899. The reversal of 12613188886 is 68888131621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68888131621 = 124955154629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12613188881) 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 as a sum of consecutive naturals, namely, 3153297220 + ... + 3153297223.

It is an arithmetic number, because the mean of its divisors is an integer number (4729945833).

Almost surely, 212613188886 is an apocalyptic number.

12613188886 is a deficient number, since it is larger than the sum of its proper divisors (6306594446).

12613188886 is an equidigital number, since it uses as much as digits as its factorization.

12613188886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6306594445.

The product of its digits is 884736, while the sum is 52.

The spelling of 12613188886 in words is "twelve billion, six hundred thirteen million, one hundred eighty-eight thousand, eight hundred eighty-six".

Divisors: 1 2 6306594443 12613188886