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12982775 = 521343929
BaseRepresentation
bin110001100001…
…100111110111
3220102121000112
4301201213313
511310422100
61142133235
7215231441
oct61414767
926377015
1012982775
117368173
12442121b
1328c7420
141a1d491
151216b35
hexc619f7

12982775 has 24 divisors (see below), whose sum is σ = 17759280. Its totient is φ = 9354240.

The previous prime is 12982759. The next prime is 12982789. The reversal of 12982775 is 57728921.

12982775 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12982775 - 24 = 12982759 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

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, 13511 + ... + 14439.

It is an arithmetic number, because the mean of its divisors is an integer number (739970).

Almost surely, 212982775 is an apocalyptic number.

12982775 is a deficient number, since it is larger than the sum of its proper divisors (4776505).

12982775 is a wasteful number, since it uses less digits than its factorization.

12982775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995 (or 990 counting only the distinct ones).

The product of its digits is 70560, while the sum is 41.

The square root of 12982775 is about 3603.1618059699. The cubic root of 12982775 is about 235.0295722556.

The spelling of 12982775 in words is "twelve million, nine hundred eighty-two thousand, seven hundred seventy-five".

Divisors: 1 5 13 25 43 65 215 325 559 929 1075 2795 4645 12077 13975 23225 39947 60385 199735 301925 519311 998675 2596555 12982775