Numbers 3:46–47

And as the redemption price for the 273 of the firstborn of the people of Israel, over and above the number of the male Levites, you shall take five shekels per head; you shall take them according to the shekel of the sanctuary (the shekel of twenty gerahs),

As the redemption price for the 273 firstborn Israelites who outnumber the Levites, collect five shekels for each person, according to the standard sanctuary shekel—twenty gerahs to the shekel.

There are 273 more firstborn sons of Israel than there are Levites. To redeem these extra firstborn sons, collect five pieces of silver for each of them (each piece weighing the same as the sanctuary shekel, which equals twenty gerahs).

And the ransom of the two hundred and seventy-three of the firstborn of the Israelites who are excessive over the Levites, you will receive five shekels a person, in the sanctuary shekel; you will collect twenty gerahs per shekel.

And for those that are to be redeemed of the two hundred and threescore and thirteen of the firstborn of the children of Israel, which are more than the Levites; Thou shalt even take five shekels apiece by the poll, after the shekel of the sanctuary shalt thou take them: (the shekel is twenty gerahs:)