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13253290 = 2523291987
BaseRepresentation
bin110010100011…
…101010101010
3220221100002121
4302203222222
511343101130
61152021454
7220436221
oct62435252
926840077
1013253290
117532436
12453188a
1329905ab
141a8dcb8
15126bd7a
hexca3aaa

13253290 has 32 divisors (see below), whose sum is σ = 25764480. Its totient is φ = 4893504.

The previous prime is 13253249. The next prime is 13253293. The reversal of 13253290 is 9235231.

It is a happy number.

13253290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13253293) 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, 5677 + ... + 7663.

It is an arithmetic number, because the mean of its divisors is an integer number (805140).

Almost surely, 213253290 is an apocalyptic number.

13253290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13253290 is a deficient number, since it is larger than the sum of its proper divisors (12511190).

13253290 is a wasteful number, since it uses less digits than its factorization.

13253290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 13253290 is about 3640.5068328462. The cubic root of 13253290 is about 236.6507582597.

The spelling of 13253290 in words is "thirteen million, two hundred fifty-three thousand, two hundred ninety".

Divisors: 1 2 5 10 23 29 46 58 115 145 230 290 667 1334 1987 3335 3974 6670 9935 19870 45701 57623 91402 115246 228505 288115 457010 576230 1325329 2650658 6626645 13253290