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13255242 = 23711132207
BaseRepresentation
bin110010100100…
…001001001010
3220221102202220
4302210021022
511343131432
61152034510
7220445010
oct62441112
926842686
1013255242
117533950
124532a36
132991450
141a908b0
15126c72c
hexca424a

13255242 has 64 divisors (see below), whose sum is σ = 35610624. Its totient is φ = 3176640.

The previous prime is 13255201. The next prime is 13255243. The reversal of 13255242 is 24255231.

It is not an unprimeable number, because it can be changed into a prime (13255243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4903 + ... + 7109.

It is an arithmetic number, because the mean of its divisors is an integer number (556416).

Almost surely, 213255242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13255242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17805312).

13255242 is an abundant number, since it is smaller than the sum of its proper divisors (22355382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13255242 is a wasteful number, since it uses less digits than its factorization.

13255242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243.

The product of its digits is 2400, while the sum is 24.

The square root of 13255242 is about 3640.7749175141. The cubic root of 13255242 is about 236.6623759940.

It can be divided in two parts, 13 and 255242, that added together give a triangular number (255255 = T714).

The spelling of 13255242 in words is "thirteen million, two hundred fifty-five thousand, two hundred forty-two".

Divisors: 1 2 3 6 7 11 13 14 21 22 26 33 39 42 66 77 78 91 143 154 182 231 273 286 429 462 546 858 1001 2002 2207 3003 4414 6006 6621 13242 15449 24277 28691 30898 46347 48554 57382 72831 86073 92694 145662 169939 172146 200837 315601 339878 401674 509817 602511 631202 946803 1019634 1205022 1893606 2209207 4418414 6627621 13255242