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13187027 = 722311701
BaseRepresentation
bin110010010011…
…011111010011
3220210222012102
4302103133103
511333441102
61150351015
7220042100
oct62233723
926728172
1013187027
117497677
1244bb46b
132969399
141a73aa7
151257402
hexc937d3

13187027 has 12 divisors (see below), whose sum is σ = 16008336. Its totient is φ = 10810800.

The previous prime is 13187023. The next prime is 13187033. The reversal of 13187027 is 72078131.

It is not a de Polignac number, because 13187027 - 22 = 13187023 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13187023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4724 + ... + 6977.

It is an arithmetic number, because the mean of its divisors is an integer number (1334028).

Almost surely, 213187027 is an apocalyptic number.

13187027 is a deficient number, since it is larger than the sum of its proper divisors (2821309).

13187027 is a wasteful number, since it uses less digits than its factorization.

13187027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11738 (or 11731 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 13187027 is about 3631.3946356737. The cubic root of 13187027 is about 236.2557017371.

The spelling of 13187027 in words is "thirteen million, one hundred eighty-seven thousand, twenty-seven".

Divisors: 1 7 23 49 161 1127 11701 81907 269123 573349 1883861 13187027