$${K = \frac{1}{2} I \omega^2 = \frac{1}{2}(19,64\, \mathrm{kg \cdot m^2})(1,466 \times 10^3\, \mathrm{rad/s})^2 \\ = \underline{\underline{2,1 \times 10^7\, \mathrm{J}}}}$$