Base | Representation |
---|---|
bin | 1010011000100… |
… | …10101010111100 |
3 | 20001220120002202 |
4 | 11030102222330 |
5 | 134244431114 |
6 | 12351011032 |
7 | 2105260004 |
oct | 514225274 |
9 | 201816082 |
10 | 87108284 |
11 | 4519681a |
12 | 25209a78 |
13 | 1507b983 |
14 | b7d7004 |
15 | 79a9cde |
hex | 5312abc |
87108284 has 12 divisors (see below), whose sum is σ = 153640704. Its totient is φ = 43210944.
The previous prime is 87108283. The next prime is 87108311. The reversal of 87108284 is 48280178.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87108283) 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 3 ways as a sum of consecutive naturals, for example, 85229 + ... + 86244.
It is an arithmetic number, because the mean of its divisors is an integer number (12803392).
Almost surely, 287108284 is an apocalyptic number.
It is an amenable number.
87108284 is a deficient number, since it is larger than the sum of its proper divisors (66532420).
87108284 is a wasteful number, since it uses less digits than its factorization.
87108284 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 171604 (or 171602 counting only the distinct ones).
The product of its (nonzero) digits is 28672, while the sum is 38.
The square root of 87108284 is about 9333.1818797235. The cubic root of 87108284 is about 443.2885217990.
The spelling of 87108284 in words is "eighty-seven million, one hundred eight thousand, two hundred eighty-four".
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