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12755868 = 2231062989
BaseRepresentation
bin110000101010…
…001110011100
3220000001202120
4300222032130
511231141433
61133222540
7213265056
oct60521634
926001676
1012755868
117222744
124331a50
132848068
1419a08d6
1511be7b3
hexc2a39c

12755868 has 12 divisors (see below), whose sum is σ = 29763720. Its totient is φ = 4251952.

The previous prime is 12755851. The next prime is 12755903. The reversal of 12755868 is 86855721.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

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 3 ways as a sum of consecutive naturals, for example, 531483 + ... + 531506.

It is an arithmetic number, because the mean of its divisors is an integer number (2480310).

Almost surely, 212755868 is an apocalyptic number.

It is an amenable number.

12755868 is an abundant number, since it is smaller than the sum of its proper divisors (17007852).

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

12755868 is a wasteful number, since it uses less digits than its factorization.

12755868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062996 (or 1062994 counting only the distinct ones).

The product of its digits is 134400, while the sum is 42.

The square root of 12755868 is about 3571.5358041044. The cubic root of 12755868 is about 233.6522704307.

The spelling of 12755868 in words is "twelve million, seven hundred fifty-five thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 1062989 2125978 3188967 4251956 6377934 12755868