$($i$)$ Convert $546$ base $10$ to binary

$($ii$)$ Convert $0\mathrm{.}5625$ base $10$ to binary

$($i$)$ Convert $101010110110$ base $2$ to octal and to hexadecimal

$($ii$)$ Convert $101111110110$ base $2$ to octal and to hexadecimal

Calculate the following

$($i$)45026-17231($octal$)$

$($ii$)177**23$

$($base $9)$

$($iii$)4AF73+1B792($hexadecimal$)$

$($iv$)1111001$:$1011$

$($binary$)$