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12456608008 = 2313277432401
BaseRepresentation
bin10111001100111100…
…01100000100001000
31012011010022020210011
423212132030010020
5201002342424013
65420020201304
7620454264265
oct134636140410
935133266704
1012456608008
115312480a69
1224b7839234
131236936190
1486251a26c
154cd8b6c3d
hex2e678c108

12456608008 has 32 divisors (see below), whose sum is σ = 25243628760. Its totient is φ = 5728435200.

The previous prime is 12456607921. The next prime is 12456608009. The reversal of 12456608008 is 80080665421.

It can be written as a sum of positive squares in 4 ways, for example, as 8419530564 + 4037077444 = 91758^2 + 63538^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12456608009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187393 + ... + 245008.

Almost surely, 212456608008 is an apocalyptic number.

It is an amenable number.

12456608008 is an abundant number, since it is smaller than the sum of its proper divisors (12787020752).

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

12456608008 is a wasteful number, since it uses less digits than its factorization.

12456608008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432697 (or 432693 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 12456608008 in words is "twelve billion, four hundred fifty-six million, six hundred eight thousand, eight".

Divisors: 1 2 4 8 13 26 52 104 277 554 1108 2216 3601 7202 14404 28808 432401 864802 1729604 3459208 5621213 11242426 22484852 44969704 119775077 239550154 479100308 958200616 1557076001 3114152002 6228304004 12456608008