Base | Representation |
---|---|
bin | 1010011100111… |
… | …11010001110000 |
3 | 20002222211010021 |
4 | 11032133101300 |
5 | 134421343313 |
6 | 12411213224 |
7 | 2113206043 |
oct | 516372160 |
9 | 202884107 |
10 | 87684208 |
11 | 4554a497 |
12 | 25447214 |
13 | 15220b61 |
14 | b906c5a |
15 | 7a7078d |
hex | 539f470 |
87684208 has 20 divisors (see below), whose sum is σ = 170065008. Its totient is φ = 43796480.
The previous prime is 87684203. The next prime is 87684227. The reversal of 87684208 is 80248678.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87684203) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17328 + ... + 21808.
Almost surely, 287684208 is an apocalyptic number.
It is an amenable number.
87684208 is a deficient number, since it is larger than the sum of its proper divisors (82380800).
87684208 is a wasteful number, since it uses less digits than its factorization.
87684208 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5712 (or 5706 counting only the distinct ones).
The product of its (nonzero) digits is 172032, while the sum is 43.
The square root of 87684208 is about 9363.9846219438. The cubic root of 87684208 is about 444.2633234955.
The spelling of 87684208 in words is "eighty-seven million, six hundred eighty-four thousand, two hundred eight".
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