Base | Representation |
---|---|
bin | 1010011010010… |
… | …00100100000001 |
3 | 20002022202220100 |
4 | 11031020210001 |
5 | 134324012100 |
6 | 12355433013 |
7 | 2110166400 |
oct | 515104401 |
9 | 202282810 |
10 | 87329025 |
11 | 45327653 |
12 | 252b5769 |
13 | 151282a4 |
14 | b853637 |
15 | 7a00400 |
hex | 5348901 |
87329025 has 81 divisors (see below), whose sum is σ = 184020681. Its totient is φ = 39473280.
The previous prime is 87328987. The next prime is 87329041. The reversal of 87329025 is 52092378.
It is a happy number.
The square root of 87329025 is 9345.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in 4 ways, for example, as 18173169 + 69155856 = 4263^2 + 8316^2 .
It is not a de Polignac number, because 87329025 - 27 = 87328897 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 981181 + ... + 981269.
Almost surely, 287329025 is an apocalyptic number.
87329025 is the 9345-th square number.
87329025 is the 4673-rd centered octagonal number.
It is an amenable number.
87329025 is an abundant number, since it is smaller than the sum of its proper divisors (96691656).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87329025 is a wasteful number, since it uses less digits than its factorization.
87329025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 208 (or 104 counting only the distinct ones).
The product of its (nonzero) digits is 30240, while the sum is 36.
The cubic root of 87329025 is about 443.6626515900.
Multiplying 87329025 by its sum of digits (36), we get a square (3143844900 = 560702).
The spelling of 87329025 in words is "eighty-seven million, three hundred twenty-nine thousand, twenty-five".
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