Base | Representation |
---|---|
bin | 10110101010100100… |
… | …01100011000101101 |
3 | 1011102000201012020012 |
4 | 23111102030120231 |
5 | 144410033012200 |
6 | 5331235503005 |
7 | 610353266135 |
oct | 132522143055 |
9 | 34360635205 |
10 | 12168250925 |
11 | 518472a026 |
12 | 2437157a65 |
13 | 11bbc8399c |
14 | 8360d7ac5 |
15 | 4b3407a35 |
hex | 2d548c62d |
12168250925 has 6 divisors (see below), whose sum is σ = 15088631178. Its totient is φ = 9734600720.
The previous prime is 12168250909. The next prime is 12168250957. The reversal of 12168250925 is 52905286121.
It can be written as a sum of positive squares in 3 ways, for example, as 3941579524 + 8226671401 = 62782^2 + 90701^2 .
It is not a de Polignac number, because 12168250925 - 24 = 12168250909 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 243364994 + ... + 243365043.
It is an arithmetic number, because the mean of its divisors is an integer number (2514771863).
Almost surely, 212168250925 is an apocalyptic number.
It is an amenable number.
12168250925 is a deficient number, since it is larger than the sum of its proper divisors (2920380253).
12168250925 is an equidigital number, since it uses as much as digits as its factorization.
12168250925 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 486730047 (or 486730042 counting only the distinct ones).
The product of its (nonzero) digits is 86400, while the sum is 41.
The spelling of 12168250925 in words is "twelve billion, one hundred sixty-eight million, two hundred fifty thousand, nine hundred twenty-five".
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