Numbers 3:46 WBT

⁴⁴  And the LORD spoke to Moses, saying,

⁴⁵  Take the Levites instead of all the first-born among the children of Israel, and the cattle of the Levites instead of their cattle; and the Levites shall be mine: I [am] the LORD.

⁴⁶  And for those that are to be redeemed of the two hundred and seventy and three, of the first-born of the children of Israel, which are more than the Levites:

⁴⁷  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.

⁴⁸  And thou shalt give to Aaron and to his sons the money, with which the odd number of them is to be redeemed.