No, it is not.
64000 acres=100 square miles
64000 x 64000 mm2
252.982213
0.002296 square miles.
64,000 square feet = 7,111.1 square yards.
2,787,840,000 square feet.
sqrt(64000) = 252.98 (approx).
20% of 64000= 20% * 64000= 0.2 * 64000= 12,800
64000 + 12% = 64000*1.12 = 71680
64000
64000
64000 meters is 64km