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12270806 = 215739079
BaseRepresentation
bin101110110011…
…110011010110
3212002102101022
4232303303112
511120131211
61115001142
7206204642
oct56636326
925072338
1012270806
116a21269
1241391b2
132708342
1418b5c22
151125bdb
hexbb3cd6

12270806 has 8 divisors (see below), whose sum is σ = 18523920. Its totient is φ = 6096168.

The previous prime is 12270763. The next prime is 12270871. The reversal of 12270806 is 60807221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19226 + ... + 19853.

It is an arithmetic number, because the mean of its divisors is an integer number (2315490).

Almost surely, 212270806 is an apocalyptic number.

12270806 is a deficient number, since it is larger than the sum of its proper divisors (6253114).

12270806 is a wasteful number, since it uses less digits than its factorization.

12270806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39238.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 12270806 is about 3502.9710247160. The cubic root of 12270806 is about 230.6522506314.

The spelling of 12270806 in words is "twelve million, two hundred seventy thousand, eight hundred six".

Divisors: 1 2 157 314 39079 78158 6135403 12270806