Base | Representation |
---|---|
bin | 1001100011000… |
… | …00101010000000 |
3 | 12120200212122101 |
4 | 10301200222000 |
5 | 131000301210 |
6 | 11540320144 |
7 | 1661506531 |
oct | 461405200 |
9 | 176625571 |
10 | 80087680 |
11 | 41231072 |
12 | 229a3054 |
13 | 1379127a |
14 | a8ca688 |
15 | 706ea3a |
hex | 4c60a80 |
80087680 has 96 divisors (see below), whose sum is σ = 203854140. Its totient is φ = 30081024.
The previous prime is 80087659. The next prime is 80087699. The reversal of 80087680 is 8678008.
It can be written as a sum of positive squares in 6 ways, for example, as 40246336 + 39841344 = 6344^2 + 6312^2 .
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, 184744 + ... + 185176.
Almost surely, 280087680 is an apocalyptic number.
80087680 is a gapful number since it is divisible by the number (80) 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 80087680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101927070).
80087680 is an abundant number, since it is smaller than the sum of its proper divisors (123766460).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80087680 is a wasteful number, since it uses less digits than its factorization.
80087680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 486 (or 457 counting only the distinct ones).
The product of its (nonzero) digits is 21504, while the sum is 37.
The square root of 80087680 is about 8949.1720287410. The cubic root of 80087680 is about 431.0442978929.
The spelling of 80087680 in words is "eighty million, eighty-seven thousand, six hundred eighty".
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