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12982844 = 227266239
BaseRepresentation
bin110001100001…
…101000111100
3220102121010002
4301201220330
511310422334
61142133432
7215231600
oct61415074
926377102
1012982844
117368226
124421278
1328c7474
141a1d500
151216b7e
hexc61a3c

12982844 has 18 divisors (see below), whose sum is σ = 26429760. Its totient is φ = 5563992.

The previous prime is 12982793. The next prime is 12982859. The reversal of 12982844 is 44828921.

It is a junction number, because it is equal to n+sod(n) for n = 12982798 and 12982807.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32924 + ... + 33315.

It is an arithmetic number, because the mean of its divisors is an integer number (1468320).

Almost surely, 212982844 is an apocalyptic number.

12982844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12982844 is an abundant number, since it is smaller than the sum of its proper divisors (13446916).

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

12982844 is a wasteful number, since it uses less digits than its factorization.

12982844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66257 (or 66248 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 12982844 is about 3603.1713808810. The cubic root of 12982844 is about 235.0299886281.

The spelling of 12982844 in words is "twelve million, nine hundred eighty-two thousand, eight hundred forty-four".

Divisors: 1 2 4 7 14 28 49 98 196 66239 132478 264956 463673 927346 1854692 3245711 6491422 12982844