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13979875 = 537131229
BaseRepresentation
bin110101010101…
…000011100011
3222022020210011
4311111003203
512034324000
61215345351
7226553440
oct65250343
928266704
1013979875
117989318
124822257
132b86220
141bdc9c7
1513622ba
hexd550e3

13979875 has 32 divisors (see below), whose sum is σ = 21490560. Its totient is φ = 8841600.

The previous prime is 13979857. The next prime is 13979921. The reversal of 13979875 is 57897931.

13979875 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13979875 - 25 = 13979843 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10761 + ... + 11989.

It is an arithmetic number, because the mean of its divisors is an integer number (671580).

Almost surely, 213979875 is an apocalyptic number.

13979875 is a deficient number, since it is larger than the sum of its proper divisors (7510685).

13979875 is a wasteful number, since it uses less digits than its factorization.

13979875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264 (or 1254 counting only the distinct ones).

The product of its digits is 476280, while the sum is 49.

The square root of 13979875 is about 3738.9671033589. The cubic root of 13979875 is about 240.8986850528.

The spelling of 13979875 in words is "thirteen million, nine hundred seventy-nine thousand, eight hundred seventy-five".

Divisors: 1 5 7 13 25 35 65 91 125 175 325 455 875 1229 1625 2275 6145 8603 11375 15977 30725 43015 79885 111839 153625 215075 399425 559195 1075375 1997125 2795975 13979875