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12131296 = 25379103
BaseRepresentation
bin101110010001…
…101111100000
3211211100000021
4232101233200
511101200141
61112003224
7205054132
oct56215740
924740007
1012131296
116936471
124090514
1326899a8
14187b052
1510e96d1
hexb91be0

12131296 has 12 divisors (see below), whose sum is σ = 23883552. Its totient is φ = 6065632.

The previous prime is 12131293. The next prime is 12131297. The reversal of 12131296 is 69213121.

12131296 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12131296.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189520 + ... + 189583.

It is an arithmetic number, because the mean of its divisors is an integer number (1990296).

Almost surely, 212131296 is an apocalyptic number.

12131296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12131296 is a deficient number, since it is larger than the sum of its proper divisors (11752256).

12131296 is an equidigital number, since it uses as much as digits as its factorization.

12131296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379113 (or 379105 counting only the distinct ones).

The product of its digits is 648, while the sum is 25.

The square root of 12131296 is about 3483.0010048807. The cubic root of 12131296 is about 229.7748016292.

The spelling of 12131296 in words is "twelve million, one hundred thirty-one thousand, two hundred ninety-six".

Divisors: 1 2 4 8 16 32 379103 758206 1516412 3032824 6065648 12131296