▁numer als ▁for ▁the ▁powers ▁of ▁twenty ▁ 2 0 , ▁ 4 0 0 , ▁ 8 , 0 0 0 , ▁and ▁ 1 6 0 , 0 0 0 . ▁ ▁At ong , ▁a ▁language ▁spoken ▁in ▁the ▁South ▁Gar o ▁Hills ▁of ▁Meg hal aya ▁state , ▁N ortheast ▁India , ▁and ▁adjacent ▁areas ▁in ▁Bang l adesh , ▁has ▁a ▁full ▁v iges imal ▁system ▁that ▁is ▁now ad ays ▁considered ▁arch a ic . ▁ ▁In ▁Sant ali , ▁a ▁M unda ▁language ▁of ▁India , ▁" fif ty " ▁is ▁expressed ▁by ▁the ▁phrase ▁b ā r ▁is ī ▁g äl , ▁literally ▁" two ▁twenty ▁ten ." ▁Like wise , ▁in ▁D ide i , ▁another ▁M unda ▁language ▁spoken ▁in ▁India , ▁complex ▁numer als ▁are ▁decimal ▁to ▁ 1 9 ▁and ▁decimal - v iges imal ▁to ▁ 3 9 9 . ▁ ▁The ▁Bur ush ask i ▁number ▁system ▁is ▁base ▁ 2 0 . ▁For ▁example , ▁ 2 0 ▁alt ar , ▁ 4 0 ▁alto - alt ar ▁( 2 ▁times ▁ 2 0 ), ▁ 6 0 ▁is ki - alt ar ▁( 3 ▁times ▁ 2 0 ) ▁etc . ▁ ▁In ▁East ▁Asia , ▁the ▁A inu ▁language ▁also ▁uses ▁a ▁counting ▁system ▁that ▁is ▁based ▁around ▁the ▁number ▁▁ 2 0 . ▁“ ” ▁is ▁ 2 0 , ▁“ ” ▁( ten ▁more ▁until ▁two ▁tw ent ies ) ▁is ▁ 3 0