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12188 = 2211277

12188 has 12 divisors (see below), whose sum is σ = 23352. Its totient is φ = 5520.

The previous prime is 12163. The next prime is 12197. The reversal of 12188 is 88121.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

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, 95 + ... + 182.

It is an arithmetic number, because the mean of its divisors is an integer number (1946).

212188 is an apocalyptic number.

It is an amenable number.

12188 is a deficient number, since it is larger than the sum of its proper divisors (11164).

12188 is a wasteful number, since it uses less digits than its factorization.

12188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 290 counting only the distinct ones).

The product of its digits is 128, while the sum is 20.

The square root of 12188 is about 110.3992753599. The cubic root of 12188 is about 23.0132249085.

It can be divided in two parts, 121 and 88, that multiplied together give a cube (10648 = 223).

The spelling of 12188 in words is "twelve thousand, one hundred eighty-eight".

Divisors: 1 2 4 11 22 44 277 554 1108 3047 6094 12188