1.1 billion is written as 1,100,000,000. Because 1 billion has nine zeros in it, you can simply move the decimal point nine places to the right to get your answer of 1,100,000,000.
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
It is 27,638,000,000 = 27.638 billion
It is: 900,000,000 = 0.9 billion
1.0773 billion = 1,077,300,000
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
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
It is 27,638,000,000 = 27.638 billion
It is: 900,000,000 = 0.9 billion
1.0773 billion = 1,077,300,000
4.2 billion = 4,200,000,000