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12271321194 = 2311185929109
BaseRepresentation
bin10110110110110110…
…11000000001101010
31011200012122201001120
423123123120001222
5200112424234234
65345401000110
7613044336426
oct133333300152
934605581046
1012271321194
115227928270
122465783036
131207430b02
14845a87b86
154bc4b7049
hex2db6d806a

12271321194 has 16 divisors (see below), whose sum is σ = 26773791840. Its totient is φ = 3718582160.

The previous prime is 12271321189. The next prime is 12271321207. The reversal of 12271321194 is 49112317221.

12271321194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

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 7 ways as a sum of consecutive naturals, for example, 92964489 + ... + 92964620.

It is an arithmetic number, because the mean of its divisors is an integer number (1673361990).

Almost surely, 212271321194 is an apocalyptic number.

12271321194 is an abundant number, since it is smaller than the sum of its proper divisors (14502470646).

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

12271321194 is a wasteful number, since it uses less digits than its factorization.

12271321194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185929125.

The product of its digits is 6048, while the sum is 33.

The spelling of 12271321194 in words is "twelve billion, two hundred seventy-one million, three hundred twenty-one thousand, one hundred ninety-four".

Divisors: 1 2 3 6 11 22 33 66 185929109 371858218 557787327 1115574654 2045220199 4090440398 6135660597 12271321194