3. Arrange the numbers in the set $\left\{2^{x}+2^{y} \mid x, y\right.$ are non-negative integers, $\left.x<y\right\}$ in ascending order, then the 60th number is $\qquad$ (answer with a number).
In binary numbers containing 2 ones, there is 1 two-digit number; 2 three-digit numbers; 3 four-digit numbers; ...; 10 eleven-digit numbers, then the 56th number is $2^{11}+1$, the 60th number is $2^{11}+2^{4}=2048+16=2064$.