Numbers 3:46-50

46And for those that are to be ransomed, the two hundred and seventy-three of the firstborn of the children of Israel, which are in excess over the Levites,

47thou shalt take five shekels apiece by the poll, according to the shekel of the sanctuary shalt thou take them, — twenty gerahs the shekel;

48and thou shalt give the money unto Aaron and unto his sons for those in excess among them who are to be ransomed.

49And Moses took the ransom-money from them that were over and above those who were ransomed by the Levites;

50of the firstborn of the children of Israel he took the money, a thousand three hundred and sixty-five [shekels], according to the shekel of the sanctuary.