how is a billion written
One billion is also written as 10^9,... One billion is equal to 1,000 million. One billion is written with a one followed by nine zeros, while one million is written with a one followed by six zeros. One billion is also written as 10^9, and one million is written as 10^6. Continue Reading
A billion is a number with two distinct definitions: 1,000,000,000, i.e. one thousand million, or 10 9 (ten to the ninth power), as defined on the short scale. This is now generally the meaning in both British and American English. 1,000,000,000,000, i.e. one million million, or 10 12 (ten to the twelfth power), as defined on the long scale.