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12288955 = 57250159
BaseRepresentation
bin101110111000…
…001110111011
3212010100021111
4232320032323
511121221310
61115221151
7206311600
oct56701673
925110244
1012288955
116a33968
1241477b7
132713693
1418bc6a7
15112b28a
hexbb83bb

12288955 has 12 divisors (see below), whose sum is σ = 17154720. Its totient is φ = 8426544.

The previous prime is 12288937. The next prime is 12288961. The reversal of 12288955 is 55988221.

It is not a de Polignac number, because 12288955 - 29 = 12288443 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24835 + ... + 25324.

It is an arithmetic number, because the mean of its divisors is an integer number (1429560).

Almost surely, 212288955 is an apocalyptic number.

12288955 is a deficient number, since it is larger than the sum of its proper divisors (4865765).

12288955 is an equidigital number, since it uses as much as digits as its factorization.

12288955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50178 (or 50171 counting only the distinct ones).

The product of its digits is 57600, while the sum is 40.

The square root of 12288955 is about 3505.5605828455. The cubic root of 12288955 is about 230.7659091687.

The spelling of 12288955 in words is "twelve million, two hundred eighty-eight thousand, nine hundred fifty-five".

Divisors: 1 5 7 35 49 245 50159 250795 351113 1755565 2457791 12288955