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12223123320 = 233519792859
BaseRepresentation
bin10110110001000111…
…00000111101111000
31011112211222000000010
423120203200331320
5200013104421240
65340515541520
7611620556022
oct133043407570
934484860003
1012223123320
1152026a8511
1224515ba8a0
1311ca456a65
1483d4dd012
154b8146280
hex2d88e0f78

12223123320 has 192 divisors, whose sum is σ = 39139632000. Its totient is φ = 3045309696.

The previous prime is 12223123313. The next prime is 12223123337. The reversal of 12223123320 is 2332132221.

It is a happy number.

12223123320 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14229051 + ... + 14229909.

It is an arithmetic number, because the mean of its divisors is an integer number (203852250).

Almost surely, 212223123320 is an apocalyptic number.

12223123320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12223123320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19569816000).

12223123320 is an abundant number, since it is smaller than the sum of its proper divisors (26916508680).

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

12223123320 is a wasteful number, since it uses less digits than its factorization.

12223123320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050 (or 967 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12223123320 its reverse (2332132221), we get a palindrome (14555255541).

The spelling of 12223123320 in words is "twelve billion, two hundred twenty-three million, one hundred twenty-three thousand, three hundred twenty".