Base | Representation |
---|---|
bin | 11111011001000001111011 |
3 | 120111002001022 |
4 | 133121001323 |
5 | 4101311422 |
6 | 452213055 |
7 | 126642134 |
oct | 37310173 |
9 | 16432038 |
10 | 8228987 |
11 | 4710618 |
12 | 290a18b |
13 | 1921730 |
14 | 1142c8b |
15 | ac8342 |
hex | 7d907b |
8228987 has 8 divisors (see below), whose sum is σ = 9078720. Its totient is φ = 7410240.
The previous prime is 8228959. The next prime is 8228989. The reversal of 8228987 is 7898228.
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 8228987 - 218 = 7966843 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (8228989) 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, 7187 + ... + 8252.
It is an arithmetic number, because the mean of its divisors is an integer number (1134840).
Almost surely, 28228987 is an apocalyptic number.
8228987 is a deficient number, since it is larger than the sum of its proper divisors (849733).
8228987 is a wasteful number, since it uses less digits than its factorization.
8228987 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15493.
The product of its digits is 129024, while the sum is 44.
The square root of 8228987 is about 2868.6210973218. The cubic root of 8228987 is about 201.8903024948.
The spelling of 8228987 in words is "eight million, two hundred twenty-eight thousand, nine hundred eighty-seven".
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