Base | Representation |
---|---|
bin | 1010011011110… |
… | …00100000000100 |
3 | 20002200202020202 |
4 | 11031320200010 |
5 | 134401303010 |
6 | 12403550032 |
7 | 2111645015 |
oct | 515704004 |
9 | 202622222 |
10 | 87525380 |
11 | 45451128 |
12 | 2538b318 |
13 | 15196787 |
14 | b8a500c |
15 | 7a3d6a5 |
hex | 5378804 |
87525380 has 24 divisors (see below), whose sum is σ = 183980160. Its totient is φ = 34976480.
The previous prime is 87525377. The next prime is 87525397. The reversal of 87525380 is 8352578.
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, 36251 + ... + 38589.
It is an arithmetic number, because the mean of its divisors is an integer number (7665840).
Almost surely, 287525380 is an apocalyptic number.
It is a pronic number, being equal to 9355×9356.
It is an amenable number.
87525380 is an abundant number, since it is smaller than the sum of its proper divisors (96454780).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87525380 is a wasteful number, since it uses less digits than its factorization.
87525380 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4219 (or 4217 counting only the distinct ones).
The product of its (nonzero) digits is 67200, while the sum is 38.
The square root of 87525380 is about 9355.4999866389. The cubic root of 87525380 is about 443.9949205382.
The spelling of 87525380 in words is "eighty-seven million, five hundred twenty-five thousand, three hundred eighty".
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