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14131988 = 2213271769
BaseRepresentation
bin110101111010…
…001100010100
3222120222102222
4311322030110
512104210423
61222521512
7231056063
oct65721424
928528388
1014131988
117a82632
124896298
132c0a530
141c3c1da
1513923c8
hexd7a314

14131988 has 12 divisors (see below), whose sum is σ = 26633460. Its totient is φ = 6522432.

The previous prime is 14131979. The next prime is 14132011. The reversal of 14131988 is 88913141.

14131988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8832784 + 5299204 = 2972^2 + 2302^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135833 + ... + 135936.

It is an arithmetic number, because the mean of its divisors is an integer number (2219455).

Almost surely, 214131988 is an apocalyptic number.

It is an amenable number.

14131988 is a deficient number, since it is larger than the sum of its proper divisors (12501472).

14131988 is a wasteful number, since it uses less digits than its factorization.

14131988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271786 (or 271784 counting only the distinct ones).

The product of its digits is 6912, while the sum is 35.

The square root of 14131988 is about 3759.2536493299. The cubic root of 14131988 is about 241.7692630306.

The spelling of 14131988 in words is "fourteen million, one hundred thirty-one thousand, nine hundred eighty-eight".

Divisors: 1 2 4 13 26 52 271769 543538 1087076 3532997 7065994 14131988