Base | Representation |
---|---|
bin | 1001100110110… |
… | …00110111101000 |
3 | 12121121220002010 |
4 | 10303120313220 |
5 | 131112030242 |
6 | 11555035520 |
7 | 1665630216 |
oct | 463306750 |
9 | 177556063 |
10 | 80580072 |
11 | 41538001 |
12 | 22b9bba0 |
13 | 13904421 |
14 | a9b7cb6 |
15 | 711a89c |
hex | 4cd8de8 |
80580072 has 32 divisors (see below), whose sum is σ = 202586400. Its totient is φ = 26708544.
The previous prime is 80580013. The next prime is 80580127. The reversal of 80580072 is 27008508.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5083 + ... + 13674.
It is an arithmetic number, because the mean of its divisors is an integer number (6330825).
Almost surely, 280580072 is an apocalyptic number.
It is an amenable number.
80580072 is an abundant number, since it is smaller than the sum of its proper divisors (122006328).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80580072 is a wasteful number, since it uses less digits than its factorization.
80580072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18945 (or 18941 counting only the distinct ones).
The product of its (nonzero) digits is 4480, while the sum is 30.
The square root of 80580072 is about 8976.6403514901. The cubic root of 80580072 is about 431.9258703393.
The spelling of 80580072 in words is "eighty million, five hundred eighty thousand, seventy-two".
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