幂 冪 mi4
power; exponent (math.); to cover with a cloth; cloth cover; veil

strokes 15
radical
冖
冖
strokes after radical 14
乘幂 乘冪 cheng2 mi4
the power of a number (square, cube etc); to exponentiate (math.)

幂等 冪等 mi4 deng3
idempotent (math.)

幂级数 冪級數 mi4 ji2 shu4
power series (math.)

三次幂 三次冪 san1 ci4 mi4
cube (third power, math.)