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12286908 = 2232341303
BaseRepresentation
bin101110110111…
…101110111100
3212010020110200
4232313232330
511121140113
61115203500
7206302614
oct56675674
925106420
1012286908
116a32377
124146590
13271277a
1418bba44
15112a873
hexbb7bbc

12286908 has 18 divisors (see below), whose sum is σ = 31058664. Its totient is φ = 4095624.

The previous prime is 12286891. The next prime is 12286919. The reversal of 12286908 is 80968221.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 341303 = 12286908 / (1 + 2 + 2 + 8 + 6 + 9 + 0 + 8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 170616 + ... + 170687.

Almost surely, 212286908 is an apocalyptic number.

12286908 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12286908 is an abundant number, since it is smaller than the sum of its proper divisors (18771756).

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

12286908 is a wasteful number, since it uses less digits than its factorization.

12286908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341313 (or 341308 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 12286908 is about 3505.2686059702. The cubic root of 12286908 is about 230.7530953847.

The spelling of 12286908 in words is "twelve million, two hundred eighty-six thousand, nine hundred eight".

Divisors: 1 2 3 4 6 9 12 18 36 341303 682606 1023909 1365212 2047818 3071727 4095636 6143454 12286908