a beka per person, that is, half a shekel, according to the sanctuary shekel, from everyone twenty years of age or older who had crossed over to be numbered, a total of 603,550 men.
KJV
A bekah for every man, [that is], half a shekel, after the shekel of the sanctuary, for every one that went to be numbered, from twenty years old and upward, for six hundred thousand and three thousand and five hundred and fifty [men].
ASV
a beka a head, that is, half a shekel, after the shekel of the sanctuary, for every one that passed over to them that were numbered, from twenty years old and upward, for six hundred thousand and three thousand and five hundred and fifty men.