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12512638875113 = 1317199284513947
BaseRepresentation
bin1011011000010101001101…
…1001010011010111101001
31122022012022022120012021122
42312011103121103113221
53120001341023000423
642340121004145025
72431002566366306
oct266052331232751
948265268505248
1012512638875113
113a94642494233
1214a1049538175
136c9c2415c590
143138876060ad
1516a7384208c8
hexb61536535e9

12512638875113 has 16 divisors (see below), whose sum is σ = 14339502979200. Its totient is φ = 10816082171136.

The previous prime is 12512638875101. The next prime is 12512638875133. The reversal of 12512638875113 is 31157883621521.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12512638875113 - 212 = 12512638871017 is a prime.

It is a super-2 number, since 2×125126388751132 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12512638875133) 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 15 ways as a sum of consecutive naturals, for example, 142212995 + ... + 142300952.

It is an arithmetic number, because the mean of its divisors is an integer number (896218936200).

Almost surely, 212512638875113 is an apocalyptic number.

12512638875113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12512638875113 is a deficient number, since it is larger than the sum of its proper divisors (1826864104087).

12512638875113 is a wasteful number, since it uses less digits than its factorization.

12512638875113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284514176.

The product of its digits is 2419200, while the sum is 53.

The spelling of 12512638875113 in words is "twelve trillion, five hundred twelve billion, six hundred thirty-eight million, eight hundred seventy-five thousand, one hundred thirteen".

Divisors: 1 13 17 199 221 2587 3383 43979 284513947 3698681311 4836737099 56618275453 62877582287 736037580889 962510682701 12512638875113