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111000243221 = 773217221611
BaseRepresentation
bin110011101100000100…
…0010100110000010101
3101121111210112121010022
41213120020110300111
53304312030240341
6122554240234525
711006455333310
oct1473010246025
9347453477108
10111000243221
114309081a6aa
121961990ba45
13a60c7c09ba
14552dd95977
152d49d25e4b
hex19d8214c15

111000243221 has 8 divisors (see below), whose sum is σ = 128595194304. Its totient is φ = 93839735520.

The previous prime is 111000243203. The next prime is 111000243227. The reversal of 111000243221 is 122342000111.

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 111000243221 - 26 = 111000243157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111000243221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111000243227) 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, 108610295 + ... + 108611316.

It is an arithmetic number, because the mean of its divisors is an integer number (16074399288).

Almost surely, 2111000243221 is an apocalyptic number.

It is an amenable number.

111000243221 is a deficient number, since it is larger than the sum of its proper divisors (17594951083).

111000243221 is an equidigital number, since it uses as much as digits as its factorization.

111000243221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217221691.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 111000243221 its reverse (122342000111), we get a palindrome (233342243332).

The spelling of 111000243221 in words is "one hundred eleven billion, two hundred forty-three thousand, two hundred twenty-one".

Divisors: 1 7 73 511 217221611 1520551277 15857177603 111000243221