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13255056 = 243361503
BaseRepresentation
bin110010100100…
…000110010000
3220221102112000
4302210012100
511343130211
61152034000
7220444323
oct62440620
926842460
1013255056
1175337a1
124532900
132991339
141a907ba
15126c656
hexca4190

13255056 has 80 divisors (see below), whose sum is σ = 38747520. Its totient is φ = 4337280.

The previous prime is 13255043. The next prime is 13255057. The reversal of 13255056 is 65055231.

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 (13255057) 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, 26101 + ... + 26603.

It is an arithmetic number, because the mean of its divisors is an integer number (484344).

Almost surely, 213255056 is an apocalyptic number.

13255056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13255056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19373760).

13255056 is an abundant number, since it is smaller than the sum of its proper divisors (25492464).

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

13255056 is a wasteful number, since it uses less digits than its factorization.

13255056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 13255056 is about 3640.7493734120. The cubic root of 13255056 is about 236.6612690254.

The spelling of 13255056 in words is "thirteen million, two hundred fifty-five thousand, fifty-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 61 72 108 122 144 183 216 244 366 432 488 503 549 732 976 1006 1098 1464 1509 1647 2012 2196 2928 3018 3294 4024 4392 4527 6036 6588 8048 8784 9054 12072 13176 13581 18108 24144 26352 27162 30683 36216 54324 61366 72432 92049 108648 122732 184098 217296 245464 276147 368196 490928 552294 736392 828441 1104588 1472784 1656882 2209176 3313764 4418352 6627528 13255056