Base | Representation |
---|---|
bin | 101000100011000… |
… | …100101100000000 |
3 | 1202102001221200020 |
4 | 220203010230000 |
5 | 2343123023010 |
6 | 151300453440 |
7 | 22600211004 |
oct | 5043045400 |
9 | 1672057606 |
10 | 680282880 |
11 | 31a002662 |
12 | 16b9aa280 |
13 | aac27964 |
14 | 664c4704 |
15 | 3eaca470 |
hex | 288c4b00 |
680282880 has 216 divisors, whose sum is σ = 2311739472. Its totient is φ = 170459136.
The previous prime is 680282809. The next prime is 680282881. The reversal of 680282880 is 88282086.
It is not an unprimeable number, because it can be changed into a prime (680282881) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1109454 + ... + 1110066.
Almost surely, 2680282880 is an apocalyptic number.
680282880 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 680282880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1155869736).
680282880 is an abundant number, since it is smaller than the sum of its proper divisors (1631456592).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
680282880 is a wasteful number, since it uses less digits than its factorization.
680282880 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 671 (or 640 counting only the distinct ones).
The product of its (nonzero) digits is 98304, while the sum is 42.
The square root of 680282880 is about 26082.2330332355. The cubic root of 680282880 is about 879.4878562696.
The spelling of 680282880 in words is "six hundred eighty million, two hundred eighty-two thousand, eight hundred eighty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.064 sec. • engine limits •