1,000,000,000 .am sure
Two billion nine million six thousand one is written as 2,009,006,000
Two billion, thirty million, one hundred four thousand = 2,030,104,000
1,001,001,001 or one billion, one million, one thousand, one.
one billion, four hundred thirteen million, one thousand.
1,000,000,000,000 or One thousand billion One million million One billion thousand
ten billion six hundred eighty-six million one hundred thousand
0.4 billion is four tenths of one billion. One tenth of a billion is 100 million. (A billion is one thousand millions.) So four tenths of a billion is 400 million, or 400,000,000.
One million thousands is the same as one thousand millions; both equal a billion (US reckoning) or a milliard (UK reckoning).Written out, this would be 1,000,000,000.