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12232388 = 227436871
BaseRepresentation
bin101110101010…
…011011000100
3212000110200102
4232222123010
511112414023
61114103232
7205654640
oct56523304
925013612
1012232388
1169a5413
12411ab18
1326c39cc
1418a5c20
151119628
hexbaa6c4

12232388 has 12 divisors (see below), whose sum is σ = 24464832. Its totient is φ = 5242440.

The previous prime is 12232373. The next prime is 12232397. The reversal of 12232388 is 88323221.

12232388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

12232388 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 12232388.

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, 218408 + ... + 218463.

It is an arithmetic number, because the mean of its divisors is an integer number (2038736).

Almost surely, 212232388 is an apocalyptic number.

It is an amenable number.

12232388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12232388 is a wasteful number, since it uses less digits than its factorization.

12232388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436882 (or 436880 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 12232388 is about 3497.4830950271. The cubic root of 12232388 is about 230.4112867815.

The spelling of 12232388 in words is "twelve million, two hundred thirty-two thousand, three hundred eighty-eight".

Divisors: 1 2 4 7 14 28 436871 873742 1747484 3058097 6116194 12232388