Base | Representation |
---|---|
bin | 1010011011000… |
… | …00100000111010 |
3 | 20002111202110212 |
4 | 11031200200322 |
5 | 134340132010 |
6 | 12401511122 |
7 | 2111055410 |
oct | 515404072 |
9 | 202452425 |
10 | 87427130 |
11 | 4539432a |
12 | 253424a2 |
13 | 15160b3b |
14 | b87b2b0 |
15 | 7a1e505 |
hex | 536083a |
87427130 has 32 divisors (see below), whose sum is σ = 185656320. Its totient is φ = 29007360.
The previous prime is 87427111. The next prime is 87427133. The reversal of 87427130 is 3172478.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (87427133) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17975 + ... + 22314.
It is an arithmetic number, because the mean of its divisors is an integer number (5801760).
Almost surely, 287427130 is an apocalyptic number.
87427130 is an abundant number, since it is smaller than the sum of its proper divisors (98229190).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87427130 is a wasteful number, since it uses less digits than its factorization.
87427130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 40334.
The product of its (nonzero) digits is 9408, while the sum is 32.
The square root of 87427130 is about 9350.2475903048. The cubic root of 87427130 is about 443.8287255683.
The spelling of 87427130 in words is "eighty-seven million, four hundred twenty-seven thousand, one hundred thirty".
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