Number of functions f:{1,2, …, 100} →{0,1}, that assign 1 to exactly one of the positive integers less than or equal to 98, is equal to ____.

Number of functions $\displaystyle f:\{1,2, \ldots, 100\} \rightarrow\{0,1\}$, that assign $\displaystyle 1$ to exactly one of the positive integers less than or equal to $\displaystyle 98$, is equal to $\displaystyle \_\_\_\_$.