Base | Representation |
---|---|
bin | 1010011001111… |
… | …10010100100010 |
3 | 20002020122100121 |
4 | 11030332110202 |
5 | 134321141244 |
6 | 12354510454 |
7 | 2106633160 |
oct | 514762442 |
9 | 202218317 |
10 | 87287074 |
11 | 452a9086 |
12 | 2529542a |
13 | 15112174 |
14 | b842230 |
15 | 79e2c84 |
hex | 533e522 |
87287074 has 16 divisors (see below), whose sum is σ = 149812416. Its totient is φ = 37364400.
The previous prime is 87286999. The next prime is 87287077. The reversal of 87287074 is 47078278.
It is a self number, because there is not a number n which added to its sum of digits gives 87287074.
It is not an unprimeable number, because it can be changed into a prime (87287077) 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 7 ways as a sum of consecutive naturals, for example, 10384 + ... + 16804.
It is an arithmetic number, because the mean of its divisors is an integer number (9363276).
Almost surely, 287287074 is an apocalyptic number.
87287074 is a deficient number, since it is larger than the sum of its proper divisors (62525342).
87287074 is a wasteful number, since it uses less digits than its factorization.
87287074 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7401.
The product of its (nonzero) digits is 175616, while the sum is 43.
The square root of 87287074 is about 9342.7551610860. The cubic root of 87287074 is about 443.5915981879.
The spelling of 87287074 in words is "eighty-seven million, two hundred eighty-seven thousand, seventy-four".
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