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12799860 = 2235383557
BaseRepresentation
bin110000110100…
…111101110100
3220002022002220
4300310331310
511234043420
61134202340
7213540243
oct60647564
926068086
1012799860
1172527a7
1243533b0
1328620a8
1419b295a
1511cc840
hexc34f74

12799860 has 48 divisors (see below), whose sum is σ = 35997696. Its totient is φ = 3398272.

The previous prime is 12799847. The next prime is 12799867. The reversal of 12799860 is 6899721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12799867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22702 + ... + 23258.

It is an arithmetic number, because the mean of its divisors is an integer number (749952).

Almost surely, 212799860 is an apocalyptic number.

12799860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12799860 is an abundant number, since it is smaller than the sum of its proper divisors (23197836).

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

12799860 is a wasteful number, since it uses less digits than its factorization.

12799860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952 (or 950 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 12799860 is about 3577.6891983514. The cubic root of 12799860 is about 233.9205662154.

The spelling of 12799860 in words is "twelve million, seven hundred ninety-nine thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 383 557 766 1114 1149 1532 1671 1915 2228 2298 2785 3342 3830 4596 5570 5745 6684 7660 8355 11140 11490 16710 22980 33420 213331 426662 639993 853324 1066655 1279986 2133310 2559972 3199965 4266620 6399930 12799860