Base | Representation |
---|---|
bin | 10111001000100101… |
… | …10101000111010000 |
3 | 1012001120120020021020 |
4 | 23210102311013100 |
5 | 200414014412414 |
6 | 5412233155440 |
7 | 616531622031 |
oct | 134422650720 |
9 | 35046506236 |
10 | 12420075984 |
11 | 52a3899a08 |
12 | 24a755bb80 |
13 | 122c1b4cb4 |
14 | 85b72aa88 |
15 | 4ca59c7a9 |
hex | 2e44b51d0 |
12420075984 has 80 divisors (see below), whose sum is σ = 32289600000. Its totient is φ = 4113727488.
The previous prime is 12420075977. The next prime is 12420075989. The reversal of 12420075984 is 48957002421.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12420075989) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9943392 + ... + 9944640.
It is an arithmetic number, because the mean of its divisors is an integer number (403620000).
Almost surely, 212420075984 is an apocalyptic number.
It is an amenable number.
12420075984 is an abundant number, since it is smaller than the sum of its proper divisors (19869524016).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12420075984 is a wasteful number, since it uses less digits than its factorization.
12420075984 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2412 (or 2406 counting only the distinct ones).
The product of its (nonzero) digits is 161280, while the sum is 42.
The spelling of 12420075984 in words is "twelve billion, four hundred twenty million, seventy-five thousand, nine hundred eighty-four".
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