4
There are eighteen of them.
5040 numbers can be made.
There are 600 of them.
Only four numbers:20233032
There are 2000 such numbers.
Six hundred.
Six.
ten factorial = 10! = 3,628,800
125
the answer is = first 2-digit number by using 48= 28,82 and in 3 digit is=282,228,822,822
4: 1999,9199,9919,9991
There are 60480 numbers.