In a region, total annual consumption of gasoline is 30.6 million tons. The land required for growing sugarcane to produce enough bioethanol to replace the gasoline completely is __________ $\mathrm{km}^{2}$ $\text{(an integer value)}$.
Ethanol energy equivalent is $67 \%$ of gasoline, gasoline density is $850 \mathrm{~kg} / \mathrm{m}^{3}$, yield of bioethanol produced from sugarcane per hectare of land is $3750 \mathrm{~L}$, and $1 \mathrm{~km}^{2}=100$ hectares.
