The exponential form of one billion is 1*10^9.
1.0 × 109
The exponential form of 2,900 billion is: 2.9 × 1012 or2.9E12
1 x 109
1011
7.0 × 1011
5.0 × 109
10.3 billion = 1.03 x 10^10
4.4 x 1010
2 × 109
"Billion" usually has the meaning "thousand million". So 7 billion = 7 x 109.Traditional UK usage has billion meaning "million million". This in exponential form (scientific notation) is 7 x 1012.
100 in exponential form is 1 X 102.