Scientific notation of 5,000,039 is = 5.000039 x 10^6
When we have to write scientific notation then we have to put a point in the given number so that the number comes between 1 and 9. And after that put the power of the ten to how much point you have moved to get the resultant.
If you move a point in left side then power will be negative but if you move the point to the right side the power will be positive.