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13087164 = 2231090597
BaseRepresentation
bin110001111011…
…000110111100
3220121220012210
4301323012330
511322242124
61144300420
7216144666
oct61730674
926556183
1013087164
117429642
124471710
132932aac
141a49536
151237a29
hexc7b1bc

13087164 has 12 divisors (see below), whose sum is σ = 30536744. Its totient is φ = 4362384.

The previous prime is 13087157. The next prime is 13087169. The reversal of 13087164 is 46178031.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13087169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545287 + ... + 545310.

Almost surely, 213087164 is an apocalyptic number.

It is an amenable number.

13087164 is an abundant number, since it is smaller than the sum of its proper divisors (17449580).

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

13087164 is a wasteful number, since it uses less digits than its factorization.

13087164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090604 (or 1090602 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 13087164 is about 3617.6185536897. The cubic root of 13087164 is about 235.6578158837.

The spelling of 13087164 in words is "thirteen million, eighty-seven thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 12 1090597 2181194 3271791 4362388 6543582 13087164