Base | Representation |
---|---|
bin | 1001100111110… |
… | …10100100000000 |
3 | 12121212220101112 |
4 | 10303322210000 |
5 | 131130434310 |
6 | 12002022452 |
7 | 2000043452 |
oct | 463724400 |
9 | 177786345 |
10 | 80718080 |
11 | 41621763 |
12 | 23047a28 |
13 | 139521a1 |
14 | aa122d2 |
15 | 7146705 |
hex | 4cfa900 |
80718080 has 72 divisors (see below), whose sum is σ = 203582400. Its totient is φ = 30578688.
The previous prime is 80718073. The next prime is 80718133. The reversal of 80718080 is 8081708.
It is a Harshad number since it is a multiple of its sum of digits (32).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22661 + ... + 25979.
Almost surely, 280718080 is an apocalyptic number.
80718080 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 80718080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101791200).
80718080 is an abundant number, since it is smaller than the sum of its proper divisors (122864320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80718080 is a wasteful number, since it uses less digits than its factorization.
80718080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3359 (or 3345 counting only the distinct ones).
The product of its (nonzero) digits is 3584, while the sum is 32.
The square root of 80718080 is about 8984.3241259429. The cubic root of 80718080 is about 432.1723135183.
Adding to 80718080 its reverse (8081708), we get a palindrome (88799788).
The spelling of 80718080 in words is "eighty million, seven hundred eighteen thousand, eighty".
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