Do the following $($show your work$)$:

Convert ${1010011101}_{\text{B}\text{I}\text{N}\text{A}\text{R}\text{Y}}$ to hexadecimal $($using shorthand method$).$

Convert E$8$BAhex to binary $($using shorthand method$).$

Convert $1^{{10110110}_{\text{B}\text{I}\text{N}\text{A}\text{R}\text{Y}}}$ to octal $($using shorthand method$).$