It is: 1,100,000,000
11.7 billion in numbers is written as 11,700,000,000. This is achieved by multiplying 11.7 by 1 billion (1,000,000,000). The comma separators help in reading large numbers more easily.
1.52 billion written in numbers is 1,520,000,000
17.9 billion written out in numbers is 17,900,000,000
1,000 billion billion is: 1,000,000,000,000,000,000,000
15.8 billion = 15,800,000,000
Six billion = 6,000,000,000
153.4 billion = 153,400,000,000
3,900,000,000 is 3.9 billion.
1476 billion is 1,476,000,000,000
53.50 billion = 53,500,000,000
9.88 billion = 9,880,000,000
1.0773 billion = 1,077,300,000