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12813796 = 227145119
BaseRepresentation
bin110000111000…
…010111100100
3220010000020001
4300320113210
511240020141
61134351044
7213626002
oct60702744
926100201
1012813796
117262216
12435b484
132868538
1419b7a72
1511d1a31
hexc385e4

12813796 has 12 divisors (see below), whose sum is σ = 22740480. Its totient is φ = 6316520.

The previous prime is 12813791. The next prime is 12813833. The reversal of 12813796 is 69731821.

It is not an unprimeable number, because it can be changed into a prime (12813791) by changing a digit.

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, 22276 + ... + 22843.

It is an arithmetic number, because the mean of its divisors is an integer number (1895040).

Almost surely, 212813796 is an apocalyptic number.

It is an amenable number.

12813796 is a deficient number, since it is larger than the sum of its proper divisors (9926684).

12813796 is a wasteful number, since it uses less digits than its factorization.

12813796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45194 (or 45192 counting only the distinct ones).

The product of its digits is 18144, while the sum is 37.

The square root of 12813796 is about 3579.6362943741. The cubic root of 12813796 is about 234.0054300247.

It can be divided in two parts, 128 and 13796, that added together give a square (13924 = 1182).

The spelling of 12813796 in words is "twelve million, eight hundred thirteen thousand, seven hundred ninety-six".

Divisors: 1 2 4 71 142 284 45119 90238 180476 3203449 6406898 12813796