Base | Representation |
---|---|
bin | 11000010111110100100100 |
3 | 110000121002200 |
4 | 120113310210 |
5 | 3113422103 |
6 | 344534500 |
7 | 105206622 |
oct | 30276444 |
9 | 13017080 |
10 | 6389028 |
11 | 3674198 |
12 | 2181430 |
13 | 14290b9 |
14 | bc4512 |
15 | 8630a3 |
hex | 617d24 |
6389028 has 18 divisors (see below), whose sum is σ = 16150134. Its totient is φ = 2129664.
The previous prime is 6389021. The next prime is 6389041. The reversal of 6389028 is 8209836.
It can be written as a sum of positive squares in only one way, i.e., 5116644 + 1272384 = 2262^2 + 1128^2 .
It is a tau number, because it is divible by the number of its divisors (18).
It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 177473 = 6389028 / (6 + 3 + 8 + 9 + 0 + 2 + 8).
It is a junction number, because it is equal to n+sod(n) for n = 6388983 and 6389001.
It is not an unprimeable number, because it can be changed into a prime (6389021) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 88701 + ... + 88772.
Almost surely, 26389028 is an apocalyptic number.
It is an amenable number.
6389028 is an abundant number, since it is smaller than the sum of its proper divisors (9761106).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6389028 is a wasteful number, since it uses less digits than its factorization.
6389028 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 177483 (or 177478 counting only the distinct ones).
The product of its (nonzero) digits is 20736, while the sum is 36.
The square root of 6389028 is about 2527.6526660125. The cubic root of 6389028 is about 185.5573936708.
The spelling of 6389028 in words is "six million, three hundred eighty-nine thousand, twenty-eight".
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