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12133123188 = 2233541285539
BaseRepresentation
bin10110100110011000…
…01100010001110100
31011022120121112000220
423103030030101310
5144322034420223
65323542534340
7606445562664
oct132314142164
934276545026
1012133123188
11516691703a
1224274373b0
1311b4904a44
148315921a4
154b02b96e3
hex2d330c474

12133123188 has 24 divisors (see below), whose sum is σ = 28318715040. Its totient is φ = 4043218080.

The previous prime is 12133123187. The next prime is 12133123217. The reversal of 12133123188 is 88132133121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12133123187) 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, 100278 + ... + 185261.

It is an arithmetic number, because the mean of its divisors is an integer number (1179946460).

Almost surely, 212133123188 is an apocalyptic number.

It is an amenable number.

12133123188 is an abundant number, since it is smaller than the sum of its proper divisors (16185591852).

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

12133123188 is a wasteful number, since it uses less digits than its factorization.

12133123188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289087 (or 289085 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The spelling of 12133123188 in words is "twelve billion, one hundred thirty-three million, one hundred twenty-three thousand, one hundred eighty-eight".

Divisors: 1 2 3 4 6 12 3541 7082 10623 14164 21246 42492 285539 571078 856617 1142156 1713234 3426468 1011093599 2022187198 3033280797 4044374396 6066561594 12133123188