012345
81
823543
94205 if digits are not to be repeated and 99999 if digits can be repeated
500
012345 or -543210, if negative numbers are permitted.
012345
99876
543210
81
823543
There are 5! = 120 such numbers.
94205 if digits are not to be repeated and 99999 if digits can be repeated
738 numbers
24
500
3x3x3=27