It's written as either 1500 or 1,500
15 hundreds = 1500
1500
xc or m
(XV) = 1000*15 = 15000
100s
To write the numbers 168 thousand 15 hundreds into a number, it would be 169,500. There is another ways to write it depending on if you want decimals, 168,00.15.
It is 1500.
It is 1.57
1600
If you mean 15 hundreths then it is 0.15If you mean 15 hundred then it is 1500
10 00
Roman Numeral MMDLXII