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12938844 = 2233113467
BaseRepresentation
bin110001010110…
…111001011100
3220100100202110
4301112321130
511303020334
61141154020
7214656402
oct61267134
926310673
1012938844
117338166
1243bb910
1328b0429
141a0b472
151208ae9
hexc56e5c

12938844 has 24 divisors (see below), whose sum is σ = 30296448. Its totient is φ = 4297840.

The previous prime is 12938831. The next prime is 12938851. The reversal of 12938844 is 44883921.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1999 + ... + 5465.

It is an arithmetic number, because the mean of its divisors is an integer number (1262352).

Almost surely, 212938844 is an apocalyptic number.

It is an amenable number.

12938844 is an abundant number, since it is smaller than the sum of its proper divisors (17357604).

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

12938844 is a wasteful number, since it uses less digits than its factorization.

12938844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3785 (or 3783 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 12938844 is about 3597.0604665477. The cubic root of 12938844 is about 234.7641756805.

The spelling of 12938844 in words is "twelve million, nine hundred thirty-eight thousand, eight hundred forty-four".

Divisors: 1 2 3 4 6 12 311 622 933 1244 1866 3467 3732 6934 10401 13868 20802 41604 1078237 2156474 3234711 4312948 6469422 12938844