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12857080600 = 2352731321109
BaseRepresentation
bin10111111100101011…
…10111101100011000
31020012000212100220101
423332111313230120
5202312403034400
65523443505144
7633416245000
oct137625675430
936160770811
1012857080600
1154a8539a51
1225a99881b4
13129b8b1900
1489d7a5000
15503b2056a
hex2fe577b18

12857080600 has 288 divisors, whose sum is σ = 37782180000. Its totient is φ = 4065384960.

The previous prime is 12857080589. The next prime is 12857080601. The reversal of 12857080600 is 608075821.

It is a self number, because there is not a number n which added to its sum of digits gives 12857080600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12857080601) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 11592846 + ... + 11593954.

It is an arithmetic number, because the mean of its divisors is an integer number (131188125).

Almost surely, 212857080600 is an apocalyptic number.

12857080600 is a gapful number since it is divisible by the number (10) 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 12857080600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18891090000).

12857080600 is an abundant number, since it is smaller than the sum of its proper divisors (24925099400).

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

12857080600 is a wasteful number, since it uses less digits than its factorization.

12857080600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172 (or 1136 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The spelling of 12857080600 in words is "twelve billion, eight hundred fifty-seven million, eighty thousand, six hundred".