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12108156 = 2231099257
BaseRepresentation
bin101110001100…
…000101111100
3211210011021020
4232030011330
511044430111
61111304140
7204626514
oct56140574
924704236
1012108156
116920045
12407b050
13267c2b8
141872844
1510e2906
hexb8c17c

12108156 has 24 divisors (see below), whose sum is σ = 28514640. Its totient is φ = 3998592.

The previous prime is 12108137. The next prime is 12108169. The reversal of 12108156 is 65180121.

12108156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3321 + ... + 5936.

It is an arithmetic number, because the mean of its divisors is an integer number (1188110).

Almost surely, 212108156 is an apocalyptic number.

It is an amenable number.

12108156 is an abundant number, since it is smaller than the sum of its proper divisors (16406484).

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

12108156 is a wasteful number, since it uses less digits than its factorization.

12108156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9373 (or 9371 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 12108156 is about 3479.6775712701. The cubic root of 12108156 is about 229.6286129848.

Adding to 12108156 its reverse (65180121), we get a palindrome (77288277).

The spelling of 12108156 in words is "twelve million, one hundred eight thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 12 109 218 327 436 654 1308 9257 18514 27771 37028 55542 111084 1009013 2018026 3027039 4036052 6054078 12108156