Base | Representation |
---|---|
bin | 1010011111001… |
… | …00000011100101 |
3 | 20010112010120020 |
4 | 11033210003211 |
5 | 140004402200 |
6 | 12421225353 |
7 | 2115461265 |
oct | 517440345 |
9 | 203463506 |
10 | 87965925 |
11 | 45722113 |
12 | 25562259 |
13 | 152bc158 |
14 | b97b7a5 |
15 | 7ac8ea0 |
hex | 53e40e5 |
87965925 has 24 divisors (see below), whose sum is σ = 145969824. Its totient is φ = 46743360.
The previous prime is 87965921. The next prime is 87965957. The reversal of 87965925 is 52956978.
It is a happy number.
It is not a de Polignac number, because 87965925 - 22 = 87965921 is a prime.
It is a super-2 number, since 2×879659252 = 15476007922211250, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87965921) 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 23 ways as a sum of consecutive naturals, for example, 19974 + ... + 23976.
It is an arithmetic number, because the mean of its divisors is an integer number (6082076).
Almost surely, 287965925 is an apocalyptic number.
It is an amenable number.
87965925 is a deficient number, since it is larger than the sum of its proper divisors (58003899).
87965925 is a wasteful number, since it uses less digits than its factorization.
87965925 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4309 (or 4304 counting only the distinct ones).
The product of its digits is 1360800, while the sum is 51.
The square root of 87965925 is about 9379.0151401946. The cubic root of 87965925 is about 444.7386000040.
The spelling of 87965925 in words is "eighty-seven million, nine hundred sixty-five thousand, nine hundred twenty-five".
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