1024
There are 1024 megabites in 1 gigabite. 20 gigabites has 20,480 megabites.
It depends on how many gigabites it has like 8 gigabites can hold about 15 movies.
None
5500
4500
4,000,000,000
100
a half
1.306728 gb
A lot.
It's about 652 Megabytes. Or, 0.652GB
It depends on how many gigabites you get. You can have 8GB or 16GB.