Zero. Only the digits 5 and 0 appear in 500.
There are 60 such numbers.
25 digits
There are 5 numbers of 1 digit, 25 numbers of 2 digits, and 75 numbers of 3 digits. This makes 105 numbers in all.
There are 500 of them ... too many to list here.
1390
Zero. Only the digits 5 and 0 appear in 500.
There are 6484 digits BETWEEN the two given numbers.
1
There are 95 Prime #'s between 1 and 500
There are 60 such numbers.
223
501
25 digits
There are 167960 9 digits combinations between numbers 1 and 20.
There are 232 numbers between 1 and 500 that are divisible by 3 or 5.
Not couting 1 and 1000, there would be 998 numbers.