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12272428184 = 234013382271
BaseRepresentation
bin10110110110111111…
…00110010010011000
31011200021201221120012
423123133212102120
5200113220200214
65345440421052
7613056630002
oct133337462230
934607657505
1012272428184
115228513a35
122466017788
13120772a933
14845c95372
154bc63503e
hex2db7e6498

12272428184 has 16 divisors (see below), whose sum is σ = 23016597120. Its totient is φ = 6134668960.

The previous prime is 12272428153. The next prime is 12272428193. The reversal of 12272428184 is 48182427221.

It is a super-2 number, since 2×122724281842 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159032 + ... + 223239.

It is an arithmetic number, because the mean of its divisors is an integer number (1438537320).

Almost surely, 212272428184 is an apocalyptic number.

It is an amenable number.

12272428184 is a deficient number, since it is larger than the sum of its proper divisors (10744168936).

12272428184 is a wasteful number, since it uses less digits than its factorization.

12272428184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386290 (or 386286 counting only the distinct ones).

The product of its digits is 114688, while the sum is 41.

The spelling of 12272428184 in words is "twelve billion, two hundred seventy-two million, four hundred twenty-eight thousand, one hundred eighty-four".

Divisors: 1 2 4 8 4013 8026 16052 32104 382271 764542 1529084 3058168 1534053523 3068107046 6136214092 12272428184