Base | Representation |
---|---|
bin | 111111110111010000… |
… | …111111110001000000 |
3 | 20112222222002010211210 |
4 | 333313100333301000 |
5 | 2110414132443110 |
6 | 51300232010120 |
7 | 4645205230641 |
oct | 776720776100 |
9 | 215888063753 |
10 | 68572937280 |
11 | 270996a97a1 |
12 | 11358b30940 |
13 | 660a8b1b43 |
14 | 346729b6c8 |
15 | 1bb51c2520 |
hex | ff743fc40 |
68572937280 has 112 divisors (see below), whose sum is σ = 218978097984. Its totient is φ = 18180372480.
The previous prime is 68572937227. The next prime is 68572937327. The reversal of 68572937280 is 8273927586.
It is a self number, because there is not a number n which added to its sum of digits gives 68572937280.
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, 40366 + ... + 372525.
Almost surely, 268572937280 is an apocalyptic number.
68572937280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68572937280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109489048992).
68572937280 is an abundant number, since it is smaller than the sum of its proper divisors (150405160704).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68572937280 is a wasteful number, since it uses less digits than its factorization.
68572937280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 413084 (or 413074 counting only the distinct ones).
The product of its (nonzero) digits is 10160640, while the sum is 57.
The spelling of 68572937280 in words is "sixty-eight billion, five hundred seventy-two million, nine hundred thirty-seven thousand, two hundred eighty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •