Base | Representation |
---|---|
bin | 1010011000100… |
… | …10100000000101 |
3 | 20001220112011000 |
4 | 11030102200011 |
5 | 134244420324 |
6 | 12351003513 |
7 | 2105254662 |
oct | 514224005 |
9 | 201815130 |
10 | 87107589 |
11 | 45196248 |
12 | 25209599 |
13 | 1507b56a |
14 | b7d6a69 |
15 | 79a99c9 |
hex | 5312805 |
87107589 has 8 divisors (see below), whose sum is σ = 129048320. Its totient is φ = 58071708.
The previous prime is 87107543. The next prime is 87107597. The reversal of 87107589 is 98570178.
It is not a de Polignac number, because 87107589 - 211 = 87105541 is a prime.
It is a super-2 number, since 2×871075892 = 15175464122785842, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87107599) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1613077 + ... + 1613130.
It is an arithmetic number, because the mean of its divisors is an integer number (16131040).
Almost surely, 287107589 is an apocalyptic number.
It is an amenable number.
87107589 is a deficient number, since it is larger than the sum of its proper divisors (41940731).
87107589 is a wasteful number, since it uses less digits than its factorization.
87107589 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3226216 (or 3226210 counting only the distinct ones).
The product of its (nonzero) digits is 141120, while the sum is 45.
The square root of 87107589 is about 9333.1446469022. The cubic root of 87107589 is about 443.2873428589.
The spelling of 87107589 in words is "eighty-seven million, one hundred seven thousand, five hundred eighty-nine".
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