Search a number
-
+
13255928 = 237236713
BaseRepresentation
bin110010100100…
…010011111000
3220221110201022
4302210103320
511343142203
61152042012
7220450010
oct62442370
926843638
1013255928
117534414
124533308
13299185a
141a90c40
15126ca38
hexca44f8

13255928 has 16 divisors (see below), whose sum is σ = 28405680. Its totient is φ = 5681088.

The previous prime is 13255873. The next prime is 13255951. The reversal of 13255928 is 82955231.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118301 + ... + 118412.

It is an arithmetic number, because the mean of its divisors is an integer number (1775355).

Almost surely, 213255928 is an apocalyptic number.

It is an amenable number.

13255928 is an abundant number, since it is smaller than the sum of its proper divisors (15149752).

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

13255928 is a wasteful number, since it uses less digits than its factorization.

13255928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236726 (or 236722 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 13255928 is about 3640.8691270080. The cubic root of 13255928 is about 236.6664585949. Note that the first 3 decimals are identical.

The spelling of 13255928 in words is "thirteen million, two hundred fifty-five thousand, nine hundred twenty-eight".

Divisors: 1 2 4 7 8 14 28 56 236713 473426 946852 1656991 1893704 3313982 6627964 13255928