AI overview
20 is a whole number that comes after 19 and before 21 in the sequence of counting numbers. It's useful in everyday life for things like telling time (20 minutes), measuring quantities, and doing basic math.
AI-generated from the Wikipedia summary — may contain errors.
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← 20 21 22 23 24 25 26 27 28 29 → List of numbers Integers
← 0 10 20 30 40 50 60 70 80 90 →