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12089508 = 2231007459
BaseRepresentation
bin101110000111…
…100010100100
3211202012200120
4232013202210
511043331013
61111041540
7204521244
oct56074244
924665616
1012089508
116908032
1240702b0
132673972
141869b24
1510dc123
hexb878a4

12089508 has 12 divisors (see below), whose sum is σ = 28208880. Its totient is φ = 4029832.

The previous prime is 12089507. The next prime is 12089509. The reversal of 12089508 is 80598021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12089507) and next prime (12089509).

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12089501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503718 + ... + 503741.

It is an arithmetic number, because the mean of its divisors is an integer number (2350740).

Almost surely, 212089508 is an apocalyptic number.

It is an amenable number.

12089508 is an abundant number, since it is smaller than the sum of its proper divisors (16119372).

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

12089508 is a wasteful number, since it uses less digits than its factorization.

12089508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007466 (or 1007464 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 12089508 is about 3476.9969801540. The cubic root of 12089508 is about 229.5106672910.

The spelling of 12089508 in words is "twelve million, eighty-nine thousand, five hundred eight".

Divisors: 1 2 3 4 6 12 1007459 2014918 3022377 4029836 6044754 12089508