A binary numeral system is system for representing numbers in which a radix of 2 is used - so that each digit in a binary numeral may have either of two different values.
The numbers from 1000 to 9999 are all 4 digits, as are -1000 to -9999. Therefore there are 18,000 four-digit numbers in all.
18 of them
There are 9000 4-digit numbers in hindu-arabic numeration system
M in the Roman Numeral System stands for 1,000.
The number 10 has a roman numeral of X. The number 50 has a roman numeral of L. These are the only 2 digit numbers with a single value.
3 digit numbers can be written as 4 digit numbers, with the first digit being a 0. This works for all number systems.
It is a system based on the place value.
The six digit numeral in question is 6352.24.
In this context, a digit is a single numeral. The last digit (number) in 373333 is of course '3'.