Base | Representation |
---|---|
bin | 1010011110111… |
… | …10100001110011 |
3 | 20010110222111122 |
4 | 11033132201303 |
5 | 140003141113 |
6 | 12420532455 |
7 | 2115335261 |
oct | 517364163 |
9 | 203428448 |
10 | 87943283 |
11 | 457070aa |
12 | 2555112b |
13 | 152b1a5c |
14 | b973431 |
15 | 7ac2408 |
hex | 53de873 |
87943283 has 8 divisors (see below), whose sum is σ = 94932000. Its totient is φ = 81218368.
The previous prime is 87943279. The next prime is 87943301. The reversal of 87943283 is 38234978.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 87943283 - 22 = 87943279 is a prime.
It is a super-3 number, since 3×879432833 (a number of 25 digits) contains 333 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (87943223) 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, 65258 + ... + 66591.
It is an arithmetic number, because the mean of its divisors is an integer number (11866500).
Almost surely, 287943283 is an apocalyptic number.
87943283 is a deficient number, since it is larger than the sum of its proper divisors (6988717).
87943283 is a wasteful number, since it uses less digits than its factorization.
87943283 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 131901.
The product of its digits is 290304, while the sum is 44.
The square root of 87943283 is about 9377.8080061387. The cubic root of 87943283 is about 444.7004388809.
The spelling of 87943283 in words is "eighty-seven million, nine hundred forty-three thousand, two hundred eighty-three".
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