Numbers 3:43

And all the firstborn males
For such only were ordered to be numbered, and not firstborn females:

by the number of names;
which were particularly taken:

from a month old and upward;
for before that time they were not sanctified to the Lord, nor subject to the redemption price:

of those that were numbered of them [were] twenty and two thousand two
hundred and threescore and thirteen;
22,273 men; so that there were two hundred seventy three more than the Levites, ( Numbers 3:39 ) .