To write out 1.3 billion in words, you would say "one billion three hundred million." In numerical form, it is represented as 1,300,000,000. When expressing it in different contexts, you might also see it abbreviated as 1.3B.
You can write 13 1/4 billion as 13,250,000,000 or 1.325 * 1010
13,000,000,000
13,000,000,000
91,013,070,002
13 000 400 002
$13 billion$13,000,000,000.00
You can write 13 1/4 billion as 13,250,000,000 or 1.325 * 1010
13,000,000,000
13,000,000,000
$18,130,000,000.00 or $18.13 billion
13,000,000,518
13 000 400 002
91,013,070,002
I write 620 billion as 620 billion.
91,013,070,002
42,126,003,013
Sixteen point two billion is how I would write it.