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13052249 = 72118837
BaseRepresentation
bin110001110010…
…100101011001
3220120010022122
4301302211121
511320132444
61143431025
7215641130
oct61624531
926503278
1013052249
117405391
124455475
13291cc32
141a3a917
15122c4ee
hexc72959

13052249 has 8 divisors (see below), whose sum is σ = 14989248. Its totient is φ = 11133360.

The previous prime is 13052191. The next prime is 13052261. The reversal of 13052249 is 94225031.

13052249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13052249 - 216 = 12986713 is a prime.

It is a super-2 number, since 2×130522492 = 340722407916002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13052279) 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, 2942 + ... + 5895.

It is an arithmetic number, because the mean of its divisors is an integer number (1873656).

Almost surely, 213052249 is an apocalyptic number.

It is an amenable number.

13052249 is a deficient number, since it is larger than the sum of its proper divisors (1936999).

13052249 is an equidigital number, since it uses as much as digits as its factorization.

13052249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9055.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 13052249 is about 3612.7896423678. The cubic root of 13052249 is about 235.4480602124.

The spelling of 13052249 in words is "thirteen million, fifty-two thousand, two hundred forty-nine".

Divisors: 1 7 211 1477 8837 61859 1864607 13052249