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12850928 = 242347743
BaseRepresentation
bin110001000001…
…011011110000
3220011220011022
4301001123300
511242212203
61135235012
7214142156
oct61013360
926156138
1012850928
117288102
124378a68
13287c3cc
1419c73d6
1511dca38
hexc416f0

12850928 has 40 divisors (see below), whose sum is σ = 26569728. Its totient is φ = 6007232.

The previous prime is 12850919. The next prime is 12850939. The reversal of 12850928 is 82905821.

It is a super-2 number, since 2×128509282 = 330292700922368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16925 + ... + 17667.

Almost surely, 212850928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12850928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13284864).

12850928 is an abundant number, since it is smaller than the sum of its proper divisors (13718800).

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

12850928 is a wasteful number, since it uses less digits than its factorization.

12850928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821 (or 815 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 12850928 is about 3584.8191028279. The cubic root of 12850928 is about 234.2312467926.

The spelling of 12850928 in words is "twelve million, eight hundred fifty thousand, nine hundred twenty-eight".

Divisors: 1 2 4 8 16 23 46 47 92 94 184 188 368 376 743 752 1081 1486 2162 2972 4324 5944 8648 11888 17089 17296 34178 34921 68356 69842 136712 139684 273424 279368 558736 803183 1606366 3212732 6425464 12850928