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13230304 = 253113337
BaseRepresentation
bin110010011110…
…000011100000
3220220011120021
4302132003200
511341332204
61151323224
7220312213
oct62360340
926804507
1013230304
11751713a
124520514
132982ca9
141a8577a
151265154
hexc9e0e0

13230304 has 24 divisors (see below), whose sum is σ = 26889408. Its totient is φ = 6401280.

The previous prime is 13230299. The next prime is 13230307. The reversal of 13230304 is 40303231.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13230307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5677 + ... + 7660.

It is an arithmetic number, because the mean of its divisors is an integer number (1120392).

Almost surely, 213230304 is an apocalyptic number.

It is an amenable number.

13230304 is an abundant number, since it is smaller than the sum of its proper divisors (13659104).

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

13230304 is a wasteful number, since it uses less digits than its factorization.

13230304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13378 (or 13370 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 13230304 is about 3637.3484848169. The cubic root of 13230304 is about 236.5138664103.

Adding to 13230304 its reverse (40303231), we get a palindrome (53533535).

The spelling of 13230304 in words is "thirteen million, two hundred thirty thousand, three hundred four".

Divisors: 1 2 4 8 16 31 32 62 124 248 496 992 13337 26674 53348 106696 213392 413447 426784 826894 1653788 3307576 6615152 13230304