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12223131230 = 251996142277
BaseRepresentation
bin10110110001000111…
…00010111001011110
31011112211222101212002
423120203202321132
5200013110144410
65340520042302
7611620621052
oct133043427136
934484871762
1012223131230
115202703452
122451603392
1311ca45a53b
1483d501c62
154b81487a5
hex2d88e2e5e

12223131230 has 16 divisors (see below), whose sum is σ = 22112200800. Its totient is φ = 4864682592.

The previous prime is 12223131181. The next prime is 12223131233. The reversal of 12223131230 is 3213132221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223131233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3069149 + ... + 3073128.

It is an arithmetic number, because the mean of its divisors is an integer number (1382012550).

Almost surely, 212223131230 is an apocalyptic number.

12223131230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12223131230 is a deficient number, since it is larger than the sum of its proper divisors (9889069570).

12223131230 is a wasteful number, since it uses less digits than its factorization.

12223131230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6142483.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12223131230 its reverse (3213132221), we get a palindrome (15436263451).

Subtracting from 12223131230 its reverse (3213132221), we obtain a palindrome (9009999009).

The spelling of 12223131230 in words is "twelve billion, two hundred twenty-three million, one hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 199 398 995 1990 6142277 12284554 30711385 61422770 1222313123 2444626246 6111565615 12223131230