Number 20
"Number Facts & Properties" Calculator
What is number 20?
Answer
Number 20 is
an even number
Twenty
The last digit, 0, is even, so 20 is even: 20 = 2 × 10.
How to read it
Ordinal
twentieth
Divisibility
no — composite
20 = 2² × 5
6: 1, 2, 4, 5, 10, 20
Nearest primes
19 and 23
Other notations
10100
Digits
Number of digits
2
Sum of digits
2 + 0 = 2
Product of digits
2 × 0 = 0
Codes
QR code
Barcode (Code 128)
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See Also
- Decimal to Binary Converter - Decimal numbers to Binary conversion
- Numbers to Roman Numerals - Decimal numbers to Roman numerals conversion
- Factors of a Number - List all Factors and Factor Pairs of a Number
- Prime Number Checker - Find out whether a given number is Prime or not
- Prime Factorization - Prime Factorization Calculator
- Prime Numbers List - List of all Prime Numbers - how many Prime numbers are between
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