Base | Representation |
---|---|
bin | 100101011110110000… |
… | …0111101111010000000 |
3 | 21200202102011011122021 |
4 | 1022331200331322000 |
5 | 2304320132303303 |
6 | 100550501251224 |
7 | 5546406523006 |
oct | 1127540757200 |
9 | 250672134567 |
10 | 80488947328 |
11 | 31153a04489 |
12 | 13723703b14 |
13 | 778951a16a |
14 | 3c77a94a76 |
15 | 21613a1ebd |
hex | 12bd83de80 |
80488947328 has 64 divisors (see below), whose sum is σ = 161336664000. Its totient is φ = 39997089792.
The previous prime is 80488947323. The next prime is 80488947421. The reversal of 80488947328 is 82374988408.
It is a tau number, because it is divible by the number of its divisors (64).
It is not an unprimeable number, because it can be changed into a prime (80488947323) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42206151 + ... + 42208057.
It is an arithmetic number, because the mean of its divisors is an integer number (2520885375).
Almost surely, 280488947328 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80488947328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80668332000).
80488947328 is an abundant number, since it is smaller than the sum of its proper divisors (80847716672).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80488947328 is a wasteful number, since it uses less digits than its factorization.
80488947328 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3777 (or 3765 counting only the distinct ones).
The product of its (nonzero) digits is 24772608, while the sum is 61.
The spelling of 80488947328 in words is "eighty billion, four hundred eighty-eight million, nine hundred forty-seven thousand, three hundred twenty-eight".
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