Numbers 3:46-51

46There are 273 more firstborn males of the people than there are Levites. So the people must pay for the extra firstborn sons.

47You must accept five shekels for each extra firstborn male. The shekel must have the same weight as the shekel that the Levites use in God's tabernacle. There are 20 gerahs in one shekel.

48Give that money to Aaron and his sons.’

49So Moses took the money to buy back the extra 273 firstborn sons. That was because the number of firstborn sons was more than the number of Levites.

50He took 1,365 shekels from them. The shekels had the same weight as the shekel that the Levites used in God's tabernacle.

51Moses did what the Lord had told him to do. He gave the money to Aaron and his sons.