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12683128 = 2312131307
BaseRepresentation
bin110000011000…
…011101111000
3212212100222111
4300120131320
511221330003
61131502104
7212543023
oct60303570
925770874
1012683128
117183027
1242b7934
132820c13
1419821ba
1511a7e6d
hexc18778

12683128 has 16 divisors (see below), whose sum is σ = 23818680. Its totient is φ = 6331488.

The previous prime is 12683113. The next prime is 12683129. The reversal of 12683128 is 82138621.

It is a self number, because there is not a number n which added to its sum of digits gives 12683128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12683129) by changing a digit.

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, 9051 + ... + 10357.

Almost surely, 212683128 is an apocalyptic number.

It is an amenable number.

12683128 is a deficient number, since it is larger than the sum of its proper divisors (11135552).

12683128 is a wasteful number, since it uses less digits than its factorization.

12683128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526 (or 2522 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 12683128 is about 3561.3379508269. The cubic root of 12683128 is about 233.2072915643.

The spelling of 12683128 in words is "twelve million, six hundred eighty-three thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 1213 1307 2426 2614 4852 5228 9704 10456 1585391 3170782 6341564 12683128