Base | Representation |
---|---|
bin | 11111111010101010001000 |
3 | 120202001222211 |
4 | 133322222020 |
5 | 4120213403 |
6 | 455154504 |
7 | 131054536 |
oct | 37725210 |
9 | 16661884 |
10 | 8366728 |
11 | 47a5057 |
12 | 2975a34 |
13 | 196c336 |
14 | 117b156 |
15 | b0406d |
hex | 7faa88 |
8366728 has 8 divisors (see below), whose sum is σ = 15687630. Its totient is φ = 4183360.
The previous prime is 8366723. The next prime is 8366741. The reversal of 8366728 is 8276638.
It is a happy number.
8366728 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in only one way, i.e., 7851204 + 515524 = 2802^2 + 718^2 .
It is a tau number, because it is divible by the number of its divisors (8).
It is not an unprimeable number, because it can be changed into a prime (8366723) 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 as a sum of consecutive naturals, namely, 522913 + ... + 522928.
Almost surely, 28366728 is an apocalyptic number.
It is an amenable number.
8366728 is a deficient number, since it is larger than the sum of its proper divisors (7320902).
8366728 is a wasteful number, since it uses less digits than its factorization.
8366728 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1045847 (or 1045843 counting only the distinct ones).
The product of its digits is 96768, while the sum is 40.
The square root of 8366728 is about 2892.5296886981. The cubic root of 8366728 is about 203.0105230456.
The spelling of 8366728 in words is "eight million, three hundred sixty-six thousand, seven hundred twenty-eight".
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