sixity seven
7.50 is in numeric form. To write it as a mixed number, you could write 7 5/10 or 7 1/2 in simplest form.
13,500,000
1000 is a number.
1003 is not a prime number. Its factors are 1, 17, 59, and 1003.
It's already a numeric number
4020096 IS in numeric form.
8 in numeric numbers is VIII.
Nineteen.
LXXV
(XXII)
(VIII)
8,400
MMMMMMMMMMMMMD
XCIV
we write 5 in roman number like this :- V
A number must, surely, be numeric! I suggest writing it as 24000.