Base | Representation |
---|---|
bin | 1010011011110… |
… | …00011010010010 |
3 | 20002200201202001 |
4 | 11031320122102 |
5 | 134401300020 |
6 | 12403544214 |
7 | 2111643646 |
oct | 515703222 |
9 | 202621661 |
10 | 87525010 |
11 | 45450921 |
12 | 2538b06a |
13 | 15196561 |
14 | b8a4c26 |
15 | 7a3d50a |
hex | 5378692 |
87525010 has 16 divisors (see below), whose sum is σ = 166812696. Its totient is φ = 32950528.
The previous prime is 87525007. The next prime is 87525019. The reversal of 87525010 is 1052578.
It can be written as a sum of positive squares in 4 ways, for example, as 82609921 + 4915089 = 9089^2 + 2217^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 87525010.
It is not an unprimeable number, because it can be changed into a prime (87525019) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257257 + ... + 257596.
Almost surely, 287525010 is an apocalyptic number.
87525010 is a deficient number, since it is larger than the sum of its proper divisors (79287686).
87525010 is a wasteful number, since it uses less digits than its factorization.
87525010 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 514877.
The product of its (nonzero) digits is 2800, while the sum is 28.
The square root of 87525010 is about 9355.4802121537. The cubic root of 87525010 is about 443.9942948973.
Adding to 87525010 its reverse (1052578), we get a palindrome (88577588).
The spelling of 87525010 in words is "eighty-seven million, five hundred twenty-five thousand, ten".
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