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12220255189 = 23863615661
BaseRepresentation
bin10110110000110001…
…00100101111010101
31011112122120021200001
423120120210233111
5200011341131224
65340334251301
7611554312102
oct133030445725
934478507601
1012220255189
11520101965a
122450656b31
1311c999143c
1483cd93aa9
154b7c7b544
hex2d8624bd5

12220255189 has 8 divisors (see below), whose sum is σ = 12766367232. Its totient is φ = 11675376240.

The previous prime is 12220255153. The next prime is 12220255193. The reversal of 12220255189 is 98155202221.

12220255189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12220255189 - 229 = 11683384277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220255139) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 287982 + ... + 327679.

It is an arithmetic number, because the mean of its divisors is an integer number (1595795904).

Almost surely, 212220255189 is an apocalyptic number.

It is an amenable number.

12220255189 is a deficient number, since it is larger than the sum of its proper divisors (546112043).

12220255189 is an equidigital number, since it uses as much as digits as its factorization.

12220255189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616547.

The product of its (nonzero) digits is 28800, while the sum is 37.

The spelling of 12220255189 in words is "twelve billion, two hundred twenty million, two hundred fifty-five thousand, one hundred eighty-nine".

Divisors: 1 23 863 19849 615661 14160203 531315443 12220255189