Numbers 3:46-50

461For the ransom of the 273 of the firstborn of the sons of Israel who are in excess beyond the Levites,

47you shall take 2five shekels apiece, per head; you shall take them in 3terms of the shekel of the sanctuary (4the shekel is twenty 5gerahs),

48and give the money, the ransom of those who are in excess among them, to Aaron and to his sons.”

49So Moses took the ransom money from those who were in excess, beyond those ransomed by the Levites;

50from the firstborn of the sons of Israel he took the money in terms of the shekel of the sanctuary, 1,365.