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12231230 = 2511251443
BaseRepresentation
bin101110101010…
…001000111110
3212000102002112
4232222020332
511112344410
61114054022
7205651364
oct56521076
925012075
1012231230
1169a4560
12411a312
1326c331b
1418a5634
151119105
hexbaa23e

12231230 has 32 divisors (see below), whose sum is σ = 24167808. Its totient is φ = 4420000.

The previous prime is 12231229. The next prime is 12231253. The reversal of 12231230 is 3213221.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27389 + ... + 27831.

It is an arithmetic number, because the mean of its divisors is an integer number (755244).

Almost surely, 212231230 is an apocalyptic number.

12231230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12231230 is a deficient number, since it is larger than the sum of its proper divisors (11936578).

12231230 is a wasteful number, since it uses less digits than its factorization.

12231230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 12231230 is about 3497.3175434896. The cubic root of 12231230 is about 230.4040157921.

Adding to 12231230 its reverse (3213221), we get a palindrome (15444451).

Subtracting from 12231230 its reverse (3213221), we obtain a square (9018009 = 30032).

The spelling of 12231230 in words is "twelve million, two hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 251 443 502 886 1255 2215 2510 2761 4430 4873 5522 9746 13805 24365 27610 48730 111193 222386 555965 1111930 1223123 2446246 6115615 12231230