Base | Representation |
---|---|
bin | 1001100011000… |
… | …00100000010001 |
3 | 12120200211210022 |
4 | 10301200200101 |
5 | 131000241212 |
6 | 11540313225 |
7 | 1661504651 |
oct | 461404021 |
9 | 176624708 |
10 | 80087057 |
11 | 41230656 |
12 | 229a2815 |
13 | 13790bbb |
14 | a8ca361 |
15 | 706e772 |
hex | 4c60811 |
80087057 has 2 divisors, whose sum is σ = 80087058. Its totient is φ = 80087056.
The previous prime is 80087003. The next prime is 80087099. The reversal of 80087057 is 75078008.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 62789776 + 17297281 = 7924^2 + 4159^2 .
It is a cyclic number.
It is not a de Polignac number, because 80087057 - 28 = 80086801 is a prime.
It is not a weakly prime, because it can be changed into another prime (80087257) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40043528 + 40043529.
It is an arithmetic number, because the mean of its divisors is an integer number (40043529).
Almost surely, 280087057 is an apocalyptic number.
It is an amenable number.
80087057 is a deficient number, since it is larger than the sum of its proper divisors (1).
80087057 is an equidigital number, since it uses as much as digits as its factorization.
80087057 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 15680, while the sum is 35.
The square root of 80087057 is about 8949.1372209839. The cubic root of 80087057 is about 431.0431801958.
The spelling of 80087057 in words is "eighty million, eighty-seven thousand, fifty-seven".
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