Base | Representation |
---|---|
bin | 1010011000100… |
… | …01111100101101 |
3 | 20001220102001011 |
4 | 11030101330231 |
5 | 134244332300 |
6 | 12350545221 |
7 | 2105245246 |
oct | 514217455 |
9 | 201812034 |
10 | 87105325 |
11 | 4519457a |
12 | 25208211 |
13 | 1507a518 |
14 | b7d5ccd |
15 | 79a8eba |
hex | 5311f2d |
87105325 has 6 divisors (see below), whose sum is σ = 108010634. Its totient is φ = 69684240.
The previous prime is 87105287. The next prime is 87105371. The reversal of 87105325 is 52350178.
It can be written as a sum of positive squares in 3 ways, for example, as 1394761 + 85710564 = 1181^2 + 9258^2 .
It is not a de Polignac number, because 87105325 - 221 = 85008173 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1742082 + ... + 1742131.
Almost surely, 287105325 is an apocalyptic number.
It is an amenable number.
87105325 is a deficient number, since it is larger than the sum of its proper divisors (20905309).
87105325 is a wasteful number, since it uses less digits than its factorization.
87105325 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3484223 (or 3484218 counting only the distinct ones).
The product of its (nonzero) digits is 8400, while the sum is 31.
The square root of 87105325 is about 9333.0233579478. The cubic root of 87105325 is about 443.2835023545.
The spelling of 87105325 in words is "eighty-seven million, one hundred five thousand, three hundred twenty-five".
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