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12122020328 = 2311181761051
BaseRepresentation
bin10110100101000011…
…10101100111101000
31011021210201102202212
423102201311213220
5144311214122303
65322504544252
7606252321065
oct132241654750
934253642685
1012122020328
115160623320
122423782088
1311b25181c2
1482dd01c6c
154ae324ad8
hex2d28759e8

12122020328 has 32 divisors (see below), whose sum is σ = 24932063520. Its totient is φ = 5479560000.

The previous prime is 12122020321. The next prime is 12122020343. The reversal of 12122020328 is 82302022121.

12122020328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12122020321) by changing a digit.

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, 364598 + ... + 396453.

It is an arithmetic number, because the mean of its divisors is an integer number (779126985).

Almost surely, 212122020328 is an apocalyptic number.

It is an amenable number.

12122020328 is an abundant number, since it is smaller than the sum of its proper divisors (12810043192).

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

12122020328 is a wasteful number, since it uses less digits than its factorization.

12122020328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761249 (or 761245 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 12122020328 its reverse (82302022121), we get a palindrome (94424042449).

The spelling of 12122020328 in words is "twelve billion, one hundred twenty-two million, twenty thousand, three hundred twenty-eight".

Divisors: 1 2 4 8 11 22 44 88 181 362 724 1448 1991 3982 7964 15928 761051 1522102 3044204 6088408 8371561 16743122 33486244 66972488 137750231 275500462 551000924 1102001848 1515252541 3030505082 6061010164 12122020328