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12270788 = 227143207
BaseRepresentation
bin101110110011…
…110011000100
3212002102100122
4232303303010
511120131123
61115001112
7206204615
oct56636304
925072318
1012270788
116a21252
124139198
13270832a
1418b5c0c
151125bc8
hexbb3cc4

12270788 has 12 divisors (see below), whose sum is σ = 21776832. Its totient is φ = 6048840.

The previous prime is 12270763. The next prime is 12270871. The reversal of 12270788 is 88707221.

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 3 ways as a sum of consecutive naturals, for example, 21320 + ... + 21887.

It is an arithmetic number, because the mean of its divisors is an integer number (1814736).

Almost surely, 212270788 is an apocalyptic number.

It is an amenable number.

12270788 is a deficient number, since it is larger than the sum of its proper divisors (9506044).

12270788 is a wasteful number, since it uses less digits than its factorization.

12270788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43282 (or 43280 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 12270788 is about 3502.9684554674. The cubic root of 12270788 is about 230.6521378504.

The spelling of 12270788 in words is "twelve million, two hundred seventy thousand, seven hundred eighty-eight".

Divisors: 1 2 4 71 142 284 43207 86414 172828 3067697 6135394 12270788