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13164931 = 13277899
BaseRepresentation
bin110010001110…
…000110000011
3220202211220001
4302032012003
511332234211
61150100431
7216620503
oct62160603
926684801
1013164931
11748200a
1244aa717
13295c300
141a69a03
151250ac1
hexc8e183

13164931 has 6 divisors (see below), whose sum is σ = 14255700. Its totient is φ = 12152088.

The previous prime is 13164887. The next prime is 13164973. The reversal of 13164931 is 13946131.

It is not a de Polignac number, because 13164931 - 27 = 13164803 is a prime.

It is a super-2 number, since 2×131649312 = 346630816469522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13164931.

It is not an unprimeable number, because it can be changed into a prime (13164031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38781 + ... + 39118.

It is an arithmetic number, because the mean of its divisors is an integer number (2375950).

Almost surely, 213164931 is an apocalyptic number.

13164931 is a deficient number, since it is larger than the sum of its proper divisors (1090769).

13164931 is an equidigital number, since it uses as much as digits as its factorization.

13164931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77925 (or 77912 counting only the distinct ones).

The product of its digits is 1944, while the sum is 28.

The square root of 13164931 is about 3628.3510028662. The cubic root of 13164931 is about 236.1236723723.

The spelling of 13164931 in words is "thirteen million, one hundred sixty-four thousand, nine hundred thirty-one".

Divisors: 1 13 169 77899 1012687 13164931