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13133230 = 25112329179
BaseRepresentation
bin110010000110…
…010110101110
3220201020101221
4302012112232
511330230410
61145253554
7216426205
oct62062656
926636357
1013133230
117460210
1244942ba
13294aa56
141a5c23c
1512464da
hexc865ae

13133230 has 64 divisors (see below), whose sum is σ = 27993600. Its totient is φ = 4385920.

The previous prime is 13133213. The next prime is 13133233. The reversal of 13133230 is 3233131.

13133230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13133233) 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, 73281 + ... + 73459.

It is an arithmetic number, because the mean of its divisors is an integer number (437400).

Almost surely, 213133230 is an apocalyptic number.

13133230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13133230 is an abundant number, since it is smaller than the sum of its proper divisors (14860370).

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

13133230 is a wasteful number, since it uses less digits than its factorization.

13133230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 13133230 is about 3623.9798564562. The cubic root of 13133230 is about 235.9339923605.

Adding to 13133230 its reverse (3233131), we get a palindrome (16366361).

Subtracting from 13133230 its reverse (3233131), we obtain a palindrome (9900099).

The spelling of 13133230 in words is "thirteen million, one hundred thirty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 23 29 46 55 58 110 115 145 179 230 253 290 319 358 506 638 667 895 1265 1334 1595 1790 1969 2530 3190 3335 3938 4117 5191 6670 7337 8234 9845 10382 14674 19690 20585 25955 36685 41170 45287 51910 57101 73370 90574 114202 119393 226435 238786 285505 452870 571010 596965 1193930 1313323 2626646 6566615 13133230