This is the decimal number 0.00938 -- 938 x 0.00001 (1/100000)
If the question asked for "nine hundred and thirty-eight hundred-thousandths", it would not be clear whether they meant the number above or the mixed number 900 38/100000 -- (which is reducible to 900 19/50000 ).
one hundred ninty nine thousand nine hundred ninty nine..... is that what you mean by write?
nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine.
It is 9,999,000,999
Nine hundred ninety-nine thousand, nine hundred ninety-nine.
969.916
Four thousand nine hundred or forty nine hundred.
999.004
one hundred nine thousand, nine hundred fifty.
909009
Nine hundred thirty-nine.
Six billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine.