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13957908 = 2231163159
BaseRepresentation
bin110101001111…
…101100010100
3222021010122120
4311033230110
512033123113
61215055540
7226432416
oct65175424
928233576
1013957908
117973868
1248115b0
132b79223
141bd49b6
15135aa23
hexd4fb14

13957908 has 12 divisors (see below), whose sum is σ = 32568480. Its totient is φ = 4652632.

The previous prime is 13957877. The next prime is 13957949. The reversal of 13957908 is 80975931.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 13957908.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581568 + ... + 581591.

It is an arithmetic number, because the mean of its divisors is an integer number (2714040).

Almost surely, 213957908 is an apocalyptic number.

It is an amenable number.

13957908 is an abundant number, since it is smaller than the sum of its proper divisors (18610572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13957908 is a wasteful number, since it uses less digits than its factorization.

13957908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163166 (or 1163164 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 13957908 is about 3736.0283724833. The cubic root of 13957908 is about 240.7724417788.

The spelling of 13957908 in words is "thirteen million, nine hundred fifty-seven thousand, nine hundred eight".

Divisors: 1 2 3 4 6 12 1163159 2326318 3489477 4652636 6978954 13957908