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12347968 = 26296653
BaseRepresentation
bin101111000110…
…101001000000
3212020100020011
4233012221000
511130113333
61120354304
7206645623
oct57065100
925210204
1012347968
116a74236
124175994
1327344b9
1418d5dba
15113d9cd
hexbc6a40

12347968 has 28 divisors (see below), whose sum is σ = 25351740. Its totient is φ = 5960192.

The previous prime is 12347963. The next prime is 12347977. The reversal of 12347968 is 86974321.

It can be written as a sum of positive squares in 2 ways, for example, as 2663424 + 9684544 = 1632^2 + 3112^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12347968.

It is not an unprimeable number, because it can be changed into a prime (12347963) 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, 1471 + ... + 5182.

Almost surely, 212347968 is an apocalyptic number.

It is an amenable number.

12347968 is an abundant number, since it is smaller than the sum of its proper divisors (13003772).

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

12347968 is an equidigital number, since it uses as much as digits as its factorization.

12347968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6694 (or 6684 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 12347968 is about 3513.9675581883. The cubic root of 12347968 is about 231.1347077594.

The spelling of 12347968 in words is "twelve million, three hundred forty-seven thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 16 29 32 58 64 116 232 464 928 1856 6653 13306 26612 53224 106448 192937 212896 385874 425792 771748 1543496 3086992 6173984 12347968