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13145908 = 2253591051
BaseRepresentation
bin110010001001…
…011100110100
3220201212210111
4302021130310
511331132113
61145432404
7216511156
oct62113464
926655714
1013145908
117469796
12449b704
132953759
141a62ad6
15124a13d
hexc89734

13145908 has 24 divisors (see below), whose sum is σ = 23859360. Its totient is φ = 6333600.

The previous prime is 13145893. The next prime is 13145911. The reversal of 13145908 is 80954131.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 13145908.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11983 + ... + 13033.

It is an arithmetic number, because the mean of its divisors is an integer number (994140).

Almost surely, 213145908 is an apocalyptic number.

It is an amenable number.

13145908 is a deficient number, since it is larger than the sum of its proper divisors (10713452).

13145908 is a wasteful number, since it uses less digits than its factorization.

13145908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167 (or 1165 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 13145908 is about 3625.7286164301. The cubic root of 13145908 is about 236.0098865915.

The spelling of 13145908 in words is "thirteen million, one hundred forty-five thousand, nine hundred eight".

Divisors: 1 2 4 53 59 106 118 212 236 1051 2102 3127 4204 6254 12508 55703 62009 111406 124018 222812 248036 3286477 6572954 13145908