Base | Representation |
---|---|
bin | 100000000001001000… |
… | …1001000000110100000 |
3 | 20120110211101221211110 |
4 | 1000002101020012200 |
5 | 2111303411131200 |
6 | 51330424143320 |
7 | 4652606166213 |
oct | 1000221100640 |
9 | 216424357743 |
10 | 68757520800 |
11 | 27183912061 |
12 | 113aa907b40 |
13 | 6639bcc067 |
14 | 34839c977a |
15 | 1bc64d3b50 |
hex | 10024481a0 |
68757520800 has 72 divisors (see below), whose sum is σ = 223805738016. Its totient is φ = 18335338240.
The previous prime is 68757520759. The next prime is 68757520861. The reversal of 68757520800 is 802575786.
It is a Harshad number since it is a multiple of its sum of digits (48).
It is a self number, because there is not a number n which added to its sum of digits gives 68757520800.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14322084 + ... + 14326883.
It is an arithmetic number, because the mean of its divisors is an integer number (3108413028).
Almost surely, 268757520800 is an apocalyptic number.
68757520800 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
68757520800 is an abundant number, since it is smaller than the sum of its proper divisors (155048217216).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68757520800 is a wasteful number, since it uses less digits than its factorization.
68757520800 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28648990 (or 28648977 counting only the distinct ones).
The product of its (nonzero) digits is 940800, while the sum is 48.
The spelling of 68757520800 in words is "sixty-eight billion, seven hundred fifty-seven million, five hundred twenty thousand, eight hundred".
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