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12315696 = 243256577
BaseRepresentation
bin101110111110…
…110000110000
3212011200221220
4232332300300
511123100241
61115545040
7206452551
oct56766060
925150856
1012315696
116a51a68
12415b180
1327228c3
1418c8328
151134166
hexbbec30

12315696 has 20 divisors (see below), whose sum is σ = 31815672. Its totient is φ = 4105216.

The previous prime is 12315679. The next prime is 12315707. The reversal of 12315696 is 69651321.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128241 + ... + 128336.

Almost surely, 212315696 is an apocalyptic number.

12315696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12315696 is an abundant number, since it is smaller than the sum of its proper divisors (19499976).

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

12315696 is a wasteful number, since it uses less digits than its factorization.

12315696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256588 (or 256582 counting only the distinct ones).

The product of its digits is 9720, while the sum is 33.

The square root of 12315696 is about 3509.3725934987. The cubic root of 12315696 is about 230.9331715756.

The spelling of 12315696 in words is "twelve million, three hundred fifteen thousand, six hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 16 24 48 256577 513154 769731 1026308 1539462 2052616 3078924 4105232 6157848 12315696