May divide into the large, medium and small three types according to the root size;

按根的大小可分为大、中、小三类型；

youdao

They end up with assemblies or parliaments of that size because, the argument goes, the cube root of the population is the optimal size.

BBC: Incongruous, inconsistent, irrational

One idea that has taken root is the use of a token the size of a key fob that generates a random six-digit password every 60 seconds.

FORBES: Magazine Article