<P> A billion is a number with two distinct definitions: </P> <Ul> <Li> 1,000,000,000, i.e. one thousand million, or 10 (ten to the ninth power), as defined on the short scale . This is now generally the meaning in both British and American English . </Li> <Li> 1,000,000,000,000, i.e. one million million, or 10 (ten to the twelfth power), as defined on the long scale . This is one thousand times larger than the short scale billion, and equivalent to the short scale trillion . </Li> </Ul> <Li> 1,000,000,000, i.e. one thousand million, or 10 (ten to the ninth power), as defined on the short scale . This is now generally the meaning in both British and American English . </Li>

One billion is equal to how many billion