What is 3,000,000 in words?

Starting from the right it's: units, tens, hundredths, thousands, millions, billions?

So 1 Billion???

OR the next one up from millions is tens of millions?

So 30 million???

Or what?
Update: *1 Billion should had read 3 billion.

Ok so the answer is 3 million.

Will someone please explain how, using the units, hundredths thing. Thank you.
7 answers 7