I write 620 billion as 620 billion.
Sixteen point two billion is how I would write it.
You write 3.56 billion as 3,560,000,000.
17% of 827= 17% * 827= 0.17 * 827= 140.59
40,300,000,000
30% of 827= 30% x 827= 0.30 x 827= 248.10
As a number it is: 1,800,000,000 = 1.8 billion
Since you asked how I would write the number, the answer is 1031.
1,000 billion billion is: 1,000,000,000,000,000,000,000
35.9204067 billion
827/1000
u write four billion like 4,0000,000,000