I write 620 billion as 620 billion.
620
six cent vingt
620
Six hundred twenty.
70, 620
There are 620 words in the main part, and in the epilogue there are 9 pages.
six hundred and twenty thousand and ten
620
The answer is 620
620
6% of 620= 6% * 620= 0.06 * 620= 37.2