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12220002132 = 2231378333347
BaseRepresentation
bin10110110000101111…
…00110111101010100
31011112122002102112120
423120113212331110
5200011310032012
65340325015540
7611552206242
oct133027467524
934478072476
1012220002132
115200966518
1224505545b0
1311c99031c0
1483cd29792
154b7c2b58c
hex2d85e6f54

12220002132 has 24 divisors (see below), whose sum is σ = 30706672416. Its totient is φ = 3760000608.

The previous prime is 12220002031. The next prime is 12220002149. The reversal of 12220002132 is 23120002221.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 39166518 + ... + 39166829.

It is an arithmetic number, because the mean of its divisors is an integer number (1279444684).

Almost surely, 212220002132 is an apocalyptic number.

12220002132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12220002132 is an abundant number, since it is smaller than the sum of its proper divisors (18486670284).

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

12220002132 is a wasteful number, since it uses less digits than its factorization.

12220002132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78333367 (or 78333365 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12220002132 its reverse (23120002221), we get a palindrome (35340004353).

The spelling of 12220002132 in words is "twelve billion, two hundred twenty million, two thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 78333347 156666694 235000041 313333388 470000082 940000164 1018333511 2036667022 3055000533 4073334044 6110001066 12220002132