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13088139 = 322719219
BaseRepresentation
bin110001111011…
…010110001011
3220121221112220
4301323112023
511322310024
61144305123
7216150561
oct61732613
926557486
1013088139
11742a349
1244721a3
13293337c
141a49a31
151237e79
hexc7b58b

13088139 has 8 divisors (see below), whose sum is σ = 17528640. Its totient is φ = 8686536.

The previous prime is 13088129. The next prime is 13088149. The reversal of 13088139 is 93188031.

It is an interprime number because it is at equal distance from previous prime (13088129) and next prime (13088149).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13088139 - 24 = 13088123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13088129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8929 + ... + 10290.

It is an arithmetic number, because the mean of its divisors is an integer number (2191080).

Almost surely, 213088139 is an apocalyptic number.

13088139 is a deficient number, since it is larger than the sum of its proper divisors (4440501).

13088139 is a wasteful number, since it uses less digits than its factorization.

13088139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19449.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 13088139 is about 3617.7533083393. The cubic root of 13088139 is about 235.6636679451.

The spelling of 13088139 in words is "thirteen million, eighty-eight thousand, one hundred thirty-nine".

Divisors: 1 3 227 681 19219 57657 4362713 13088139