Numbers 3:44

42 So Moses numbered all the firstborn among the sons of Israel, just as the LORD had commanded him;

43 and all the firstborn males by the number of names from a month old and upward, for their numbered men were 22,273 .

44 Then the LORD spoke to Moses, saying,

45 "Take the Levites instead of all the firstborn among the sons of Israel and the cattle of the Levites. And the Levites shall be Mine; I am the LORD .

46 "For the ransom of the 273 of the firstborn of the sons of Israel who are in excess beyond the Levites,