1.02 × 1011
102,001,100,040
6,102,340,005
I write 620 billion as 620 billion.
102 = CII
Sixteen point two billion is how I would write it.
1.0 × 102 or 102
You write 3.56 billion as 3,560,000,000.
102/353
You can write 40.3 billion as 40,300,000,000.
102% = 51/50 as a fraction simolified
You can write out 1.8 billion as "1,800,000,000" or "one billion eight hundred million."