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12512484864 = 293211317963
BaseRepresentation
bin10111010011100110…
…10101111000000000
31012022000110002102100
423221303111320000
5201111144003424
65425333550400
7622033236465
oct135163257000
935260402370
1012512484864
115340a76090
1225124a5400
13124539b4c9
14869b0366c
154d3752dc9
hex2e9cd5e00

12512484864 has 240 divisors, whose sum is σ = 40670682624. Its totient is φ = 3668889600.

The previous prime is 12512484841. The next prime is 12512484911. The reversal of 12512484864 is 46848421521.

12512484864 is a `hidden beast` number, since 12 + 512 + 48 + 4 + 86 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1567347 + ... + 1575309.

Almost surely, 212512484864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12512484864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20335341312).

12512484864 is an abundant number, since it is smaller than the sum of its proper divisors (28158197760).

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

12512484864 is a wasteful number, since it uses less digits than its factorization.

12512484864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8029 (or 8010 counting only the distinct ones).

The product of its digits is 491520, while the sum is 45.

The spelling of 12512484864 in words is "twelve billion, five hundred twelve million, four hundred eighty-four thousand, eight hundred sixty-four".