Base | Representation |
---|---|
bin | 111111110100011001… |
… | …001100010000000000 |
3 | 20112212121102011200220 |
4 | 333310121030100000 |
5 | 2110314314111140 |
6 | 51251351143040 |
7 | 4644051540450 |
oct | 776431142000 |
9 | 215777364626 |
10 | 68524753920 |
11 | 27074489937 |
12 | 11344974a80 |
13 | 660091158c |
14 | 3460b17d60 |
15 | 1bb0d55bd0 |
hex | ff464c400 |
68524753920 has 176 divisors, whose sum is σ = 250482841728. Its totient is φ = 15662776320.
The previous prime is 68524753879. The next prime is 68524753933. The reversal of 68524753920 is 2935742586.
It is a happy number.
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, 211141 + ... + 426180.
Almost surely, 268524753920 is an apocalyptic number.
68524753920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
68524753920 is an abundant number, since it is smaller than the sum of its proper divisors (181958087808).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68524753920 is a wasteful number, since it uses less digits than its factorization.
68524753920 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 637356 (or 637338 counting only the distinct ones).
The product of its (nonzero) digits is 3628800, while the sum is 51.
The spelling of 68524753920 in words is "sixty-eight billion, five hundred twenty-four million, seven hundred fifty-three thousand, nine hundred twenty".
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