10-24 or a septillionth
A cubic foot is a unit of volume. Generally, the number of cubic feet in any given 3 dimensional object can be found by multiplying the three dimensions together. Those dimensions being in linear...
1728, which is equal to 12 cubed.
one U.S. fluid gallon is defined as 231 cubic inches. http://en.wikipedia.org/wiki/Conversion_of_units
It depends on what units you are talking about.