Here you go
3.907e-2
0.0039
A billion in figures is 1,000,000
Expressed in figures, 1.63 billion is equal to 1,630,000,000.
Nineteen billion in figures would be 19,000,000,000 A billion is now accepted as being 1,000,000,000 when previously a billion was 1,000,000,000,000 ( a million million).
2.34 billion in figures is written as 2,340,000,000. This represents the number two billion, three hundred forty million.
Three billion sixty million ten in figures: 3,060,000,010
Expressed in figures, this is equal to 1,320,000,000.
Expressed in figures, this is equal to 11,000,000,000.
Expressed in figures, this is equal to 58,080,000,000.
To write a quarter of a billion in figures, you would represent it as 250,000,000. This is because a billion is equivalent to one thousand million, so a quarter of a billion would be one-fourth of 1,000,000,000. Therefore, a quarter of a billion is 250 million, which is written as 250,000,000 in figures.
Expressed in figures, this is equal to 700,000,000,000.
Expressed in figures, this is equal to 5500000000.