Base | Representation |
---|---|
bin | 1010011100111… |
… | …01000110010010 |
3 | 20002222100212200 |
4 | 11032131012102 |
5 | 134421102112 |
6 | 12411104030 |
7 | 2113141032 |
oct | 516350622 |
9 | 202870780 |
10 | 87675282 |
11 | 45543812 |
12 | 25442016 |
13 | 15219a86 |
14 | b9038c2 |
15 | 7a6ccdc |
hex | 539d192 |
87675282 has 18 divisors (see below), whose sum is σ = 190049223. Its totient is φ = 29211852.
The previous prime is 87675271. The next prime is 87675283. The reversal of 87675282 is 28257678.
It can be written as a sum of positive squares in only one way, i.e., 43837641 + 43837641 = 6621^2 + 6621^2 .
It is a tau number, because it is divible by the number of its divisors (18).
It is an ABA number since it can be written as A⋅BA, here for A=2, B=6621.
It is not an unprimeable number, because it can be changed into a prime (87675283) 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 8 ways as a sum of consecutive naturals, for example, 38623 + ... + 40829.
Almost surely, 287675282 is an apocalyptic number.
87675282 is an abundant number, since it is smaller than the sum of its proper divisors (102373941).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87675282 is an equidigital number, since it uses as much as digits as its factorization.
87675282 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4422 (or 2212 counting only the distinct ones).
The product of its digits is 376320, while the sum is 45.
The square root of 87675282 is about 9363.5079964723. The cubic root of 87675282 is about 444.2482480748.
The spelling of 87675282 in words is "eighty-seven million, six hundred seventy-five thousand, two hundred eighty-two".
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