A parallel plate capacitor has plate area $100 \mathrm {~m} ^ { 2 }$ and plate separation of 10 m. The space between the plates is filled up to a thickness 5 m with a material of dielectric constant of 10. The resultant capacitance of the system is $x \mathrm { pF }$. The value of $\varepsilon _ { 0 } = 8.85 \times 10 ^ { - 12 } \mathrm {~F} \mathrm {~m} ^ { - 1 }$. The value of $x$ to the nearest integer is $\_\_\_\_$.