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12825980 = 225641299
BaseRepresentation
bin110000111011…
…010101111100
3220010121221022
4300323111330
511240412410
61134523312
7214006346
oct60732574
926117838
1012825980
117270392
124366538
132870c4b
1419bc296
1511d5455
hexc3b57c

12825980 has 12 divisors (see below), whose sum is σ = 26934600. Its totient is φ = 5130384.

The previous prime is 12825979. The next prime is 12825991. The reversal of 12825980 is 8952821.

It is a self number, because there is not a number n which added to its sum of digits gives 12825980.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320630 + ... + 320669.

It is an arithmetic number, because the mean of its divisors is an integer number (2244550).

Almost surely, 212825980 is an apocalyptic number.

12825980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12825980 is an abundant number, since it is smaller than the sum of its proper divisors (14108620).

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

12825980 is a wasteful number, since it uses less digits than its factorization.

12825980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641308 (or 641306 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 12825980 is about 3581.3377388903. The cubic root of 12825980 is about 234.0795745632.

The spelling of 12825980 in words is "twelve million, eight hundred twenty-five thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 641299 1282598 2565196 3206495 6412990 12825980