24.92 = 623/25
540,623
You would write it: 525,000,000
I would write it as 2.06 million - exactly as in the question.
2400 million
You would write it as 60,000,000
You would write it as.... 34,500,000
623 = (6 x 100) + (2 x 10) + (3 x 1)
IT would be written as four hundred million.
You would write 3.1 million dollars in numerals like this: 3,100,000
You would write is as 254,000,000
You would write it as 19,000,000