Base | Representation |
---|---|
bin | 110010000001… |
… | …111100100001 |
3 | 220200022122000 |
4 | 302001330201 |
5 | 11324141134 |
6 | 1145034213 |
7 | 216322434 |
oct | 62017441 |
9 | 26608560 |
10 | 13115169 |
11 | 7448691 |
12 | 4485969 |
13 | 2942772 |
14 | 1a5581b |
15 | 1240e99 |
hex | c81f21 |
13115169 has 16 divisors (see below), whose sum is σ = 19761600. Its totient is φ = 8594208.
The previous prime is 13115161. The next prime is 13115171. The reversal of 13115169 is 96151131.
It is not a de Polignac number, because 13115169 - 23 = 13115161 is a prime.
It is a super-2 number, since 2×131151692 = 344015315797122, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is not an unprimeable number, because it can be changed into a prime (13115161) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2524 + ... + 5709.
It is an arithmetic number, because the mean of its divisors is an integer number (1235100).
Almost surely, 213115169 is an apocalyptic number.
It is an amenable number.
13115169 is a deficient number, since it is larger than the sum of its proper divisors (6646431).
13115169 is an equidigital number, since it uses as much as digits as its factorization.
13115169 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8301 (or 8295 counting only the distinct ones).
The product of its digits is 810, while the sum is 27.
The square root of 13115169 is about 3621.4871254776. The cubic root of 13115169 is about 235.8257895120.
The spelling of 13115169 in words is "thirteen million, one hundred fifteen thousand, one hundred sixty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.084 sec. • engine limits •