Base | Representation |
---|---|
bin | 1010011000000… |
… | …11111110000001 |
3 | 20001210111111102 |
4 | 11030003332001 |
5 | 134241014230 |
6 | 12345424145 |
7 | 2104616306 |
oct | 514037601 |
9 | 201714442 |
10 | 87048065 |
11 | 45155555 |
12 | 2519b055 |
13 | 1505a440 |
14 | b7bd0ad |
15 | 7997045 |
hex | 5303f81 |
87048065 has 16 divisors (see below), whose sum is σ = 112795536. Its totient is φ = 64108800.
The previous prime is 87048029. The next prime is 87048083. The reversal of 87048065 is 56084078.
It can be written as a sum of positive squares in 8 ways, for example, as 51609856 + 35438209 = 7184^2 + 5953^2 .
It is not a de Polignac number, because 87048065 - 26 = 87048001 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25775 + ... + 28955.
It is an arithmetic number, because the mean of its divisors is an integer number (7049721).
Almost surely, 287048065 is an apocalyptic number.
It is an amenable number.
87048065 is a deficient number, since it is larger than the sum of its proper divisors (25747471).
87048065 is a wasteful number, since it uses less digits than its factorization.
87048065 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3620.
The product of its (nonzero) digits is 53760, while the sum is 38.
The square root of 87048065 is about 9329.9552517684. The cubic root of 87048065 is about 443.1863480293.
The spelling of 87048065 in words is "eighty-seven million, forty-eight thousand, sixty-five".
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