Base | Representation |
---|---|
bin | 101010011011101110… |
… | …1111000010111101000 |
3 | 22201012122120012102222 |
4 | 1110313131320113220 |
5 | 2443110433040120 |
6 | 105510122413212 |
7 | 6404105545310 |
oct | 1246735702750 |
9 | 281178505388 |
10 | 91124893160 |
11 | 35711698a64 |
12 | 157b1661208 |
13 | 8792baa632 |
14 | 45a647a440 |
15 | 2584ecd525 |
hex | 15377785e8 |
91124893160 has 64 divisors (see below), whose sum is σ = 234350651520. Its totient is φ = 31238887680.
The previous prime is 91124893159. The next prime is 91124893193. The reversal of 91124893160 is 6139842119.
It is a Cunningham number, because it is equal to 3018692-1.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3003587 + ... + 3033773.
It is an arithmetic number, because the mean of its divisors is an integer number (3661728930).
Almost surely, 291124893160 is an apocalyptic number.
It is an amenable number.
91124893160 is an abundant number, since it is smaller than the sum of its proper divisors (143225758360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
91124893160 is a wasteful number, since it uses less digits than its factorization.
91124893160 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 40986 (or 40982 counting only the distinct ones).
The product of its (nonzero) digits is 93312, while the sum is 44.
The spelling of 91124893160 in words is "ninety-one billion, one hundred twenty-four million, eight hundred ninety-three thousand, one hundred sixty".
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