You've done it.
1,400 is another way
They are all numeric characters, exactly as you have written it.
It is the same as 350
00.9
9.00 is the same as 9
1975
Without the leading zero: 9057606387
Exactly as you have done in the question: 45000
12.00 merely means 12 and in Roman numerals it is XII
It is: (IV)CCXX which means 1000*4+200+20 = 4220
That is numeric.
Group1 is considered Alpha-Numeric because it has both alphabet characters and numeric characters.
It is: 1.4*10^5