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13857427995 = 357731195121
BaseRepresentation
bin11001110011111011…
…11001001000011011
31022202202012021112220
430321331321020123
5211340000143440
610211020435123
71000254123465
oct147175711033
938682167486
1013857427995
11597117a834
1228289a8aa3
1313cac10c48
149565a3135
1556186e8d0
hex339f7921b

13857427995 has 16 divisors (see below), whose sum is σ = 22200586272. Its totient is φ = 7381061120.

The previous prime is 13857427979. The next prime is 13857428027. The reversal of 13857427995 is 59972475831.

It is a happy number.

It is not a de Polignac number, because 13857427995 - 24 = 13857427979 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 585966 + ... + 609155.

It is an arithmetic number, because the mean of its divisors is an integer number (1387536642).

Almost surely, 213857427995 is an apocalyptic number.

13857427995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13857427995 is a deficient number, since it is larger than the sum of its proper divisors (8343158277).

13857427995 is a wasteful number, since it uses less digits than its factorization.

13857427995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195902.

The product of its digits is 19051200, while the sum is 60.

The spelling of 13857427995 in words is "thirteen billion, eight hundred fifty-seven million, four hundred twenty-seven thousand, nine hundred ninety-five".

Divisors: 1 3 5 15 773 2319 3865 11595 1195121 3585363 5975605 17926815 923828533 2771485599 4619142665 13857427995