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13085169 = 34361723
BaseRepresentation
bin110001111010…
…100111110001
3220121210110220
4301322213301
511322211134
61144243253
7216136116
oct61724761
926553426
1013085169
117428099
124470529
132931c06
141a4890d
151237149
hexc7a9f1

13085169 has 4 divisors (see below), whose sum is σ = 17446896. Its totient is φ = 8723444.

The previous prime is 13085159. The next prime is 13085179. The reversal of 13085169 is 96158031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (13085159) and next prime (13085179).

It is a cyclic number.

It is not a de Polignac number, because 13085169 - 24 = 13085153 is a prime.

It is a super-2 number, since 2×130851692 = 342443295517122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13085159) 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, 2180859 + ... + 2180864.

It is an arithmetic number, because the mean of its divisors is an integer number (4361724).

Almost surely, 213085169 is an apocalyptic number.

It is an amenable number.

13085169 is a deficient number, since it is larger than the sum of its proper divisors (4361727).

13085169 is an equidigital number, since it uses as much as digits as its factorization.

13085169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4361726.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 13085169 is about 3617.3428093008. The cubic root of 13085169 is about 235.6458407597.

The spelling of 13085169 in words is "thirteen million, eighty-five thousand, one hundred sixty-nine".

Divisors: 1 3 4361723 13085169