Base | Representation |
---|---|
bin | 1010011110100… |
… | …11011011100001 |
3 | 20010101200011000 |
4 | 11033103123201 |
5 | 140000212300 |
6 | 12415542213 |
7 | 2115055611 |
oct | 517233341 |
9 | 203350130 |
10 | 87897825 |
11 | 45685a34 |
12 | 2552a969 |
13 | 15297162 |
14 | b960a41 |
15 | 7ab3c00 |
hex | 53d36e1 |
87897825 has 48 divisors (see below), whose sum is σ = 163114560. Its totient is φ = 46402560.
The previous prime is 87897793. The next prime is 87897883. The reversal of 87897825 is 52879878.
It is not a de Polignac number, because 87897825 - 25 = 87897793 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71617 + ... + 72833.
It is an arithmetic number, because the mean of its divisors is an integer number (3398220).
Almost surely, 287897825 is an apocalyptic number.
It is an amenable number.
87897825 is a deficient number, since it is larger than the sum of its proper divisors (75216735).
87897825 is a wasteful number, since it uses less digits than its factorization.
87897825 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1343 (or 1332 counting only the distinct ones).
The product of its digits is 2257920, while the sum is 54.
The square root of 87897825 is about 9375.3839921360. The cubic root of 87897825 is about 444.6238035922.
The spelling of 87897825 in words is "eighty-seven million, eight hundred ninety-seven thousand, eight hundred twenty-five".
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