Base | Representation |
---|---|
bin | 1010011000100… |
… | …11001001101101 |
3 | 20001220122210200 |
4 | 11030103021231 |
5 | 134300012003 |
6 | 12351024113 |
7 | 2105265516 |
oct | 514231155 |
9 | 201818720 |
10 | 87110253 |
11 | 4519824a |
12 | 2520b039 |
13 | 1507c839 |
14 | b7d7a0d |
15 | 79aa6a3 |
hex | 531326d |
87110253 has 12 divisors (see below), whose sum is σ = 125952060. Its totient is φ = 58015296.
The previous prime is 87110237. The next prime is 87110299. The reversal of 87110253 is 35201178.
It can be written as a sum of positive squares in 2 ways, for example, as 16499844 + 70610409 = 4062^2 + 8403^2 .
It is not a de Polignac number, because 87110253 - 24 = 87110237 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87117253) 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 11 ways as a sum of consecutive naturals, for example, 5875 + ... + 14447.
It is an arithmetic number, because the mean of its divisors is an integer number (10496005).
Almost surely, 287110253 is an apocalyptic number.
It is an amenable number.
87110253 is a deficient number, since it is larger than the sum of its proper divisors (38841807).
87110253 is a wasteful number, since it uses less digits than its factorization.
87110253 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9708 (or 9705 counting only the distinct ones).
The product of its (nonzero) digits is 1680, while the sum is 27.
The square root of 87110253 is about 9333.2873629820. The cubic root of 87110253 is about 443.2918618125.
The spelling of 87110253 in words is "eighty-seven million, one hundred ten thousand, two hundred fifty-three".
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