20,000,000,000
20,463,000,004
1.52 billion written in numbers is 1,520,000,000
17.9 billion written out in numbers is 17,900,000,000
In word forms, you can write it as 20 billion dollars, twenty billion dollars, $20 billion. Or you can write it as $20,000,000,000. There are at least 4 ways to write it, and probably more.
1,000 billion billion is: 1,000,000,000,000,000,000,000
1.48 billion = 1,480,000,000
3,900,000,000 is 3.9 billion.
15.8 billion = 15,800,000,000
Six billion = 6,000,000,000
1476 billion is 1,476,000,000,000
It is: 124,000,000,000 = 124 billion