My conversions using 173:
Bin: 10101101
Hex: AD
Oct: 255
Detailed
Bin:
173 / 2 = 86 r 1
86 / 2 = 43 r 0
43 / 2 = 21 r 1
21 / 2 = 10 r 1
10 / 2 = 5 r 0
5 / 2 = 2 r 1
2 / 2 = 1 r 0
1 / 2 = 0 r 1
-> 10101101
Hex:
173 / 16 = 10 r 13
10 / 16 = 0 r 10
13 = D
10 = A
-> AD
Oct:
173 / 8 = 21 r 5
21 / 8 = 2 r 5
2 / 8 = 0 r 2
-> 255