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12708821376 = 2733171991087
BaseRepresentation
bin10111101011000000…
…10011100110000000
31012210200220000111000
423311200103212000
5202011424241001
65501030052000
7626636125236
oct136540234600
935720800430
1012708821376
115431886669
1225681aa000
131276c72164
14887c10956
154e5ad6a86
hex2f5813980

12708821376 has 256 divisors, whose sum is σ = 39951360000. Its totient is φ = 3963396096.

The previous prime is 12708821357. The next prime is 12708821387. The reversal of 12708821376 is 67312880721.

12708821376 is a `hidden beast` number, since 1 + 270 + 8 + 8 + 2 + 1 + 376 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11691105 + ... + 11692191.

It is an arithmetic number, because the mean of its divisors is an integer number (156060000).

Almost surely, 212708821376 is an apocalyptic number.

12708821376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12708821376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19975680000).

12708821376 is an abundant number, since it is smaller than the sum of its proper divisors (27242538624).

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

12708821376 is a wasteful number, since it uses less digits than its factorization.

12708821376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326 (or 1308 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 12708821376 in words is "twelve billion, seven hundred eight million, eight hundred twenty-one thousand, three hundred seventy-six".