1.9 x 109
It is 19/7170000000.However, it is probably better to use the standard form: 19/(7.17*10^9).
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.
19,000,000,000
19,000,000,000,000,000
19,000,276,000
1.9 x 109
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).
It is 19/7170000000.However, it is probably better to use the standard form: 19/(7.17*10^9).
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.
You can write 40.3 billion as 40,300,000,000.
nineteen billion six hundred million eight hundred thousand four
You can write out 1.8 billion as "1,800,000,000" or "one billion eight hundred million."