27
Everything about the number 27 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
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Names of 27
| Nominal | 27 |
| Cardinal | twenty-seven |
| Ordinal | 27th |
| This number as US currency | twenty-seven dollars |
Properties (and some facts) of 27
| Is 27 an odd number? | 27 is an odd number |
| Is 27 an even number? | 27 is not an even number |
| Is 27 a palindrome? | 27 is not a palindrome |
| Is 27 a triangle number? | 27 is not a triangle number |
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27 in other bases
| Base 2 (Binary) | 11011 |
| Base 3 (Ternary) | 1000 |
| Base 4 (Quaternary) | 123 |
| Base 5 (Quinary) | 102 |
| Base 6 (Senary) | 43 |
| Base 8 (Octal) | 33 |
| Base 12 (Duodecimal) | 23 |
| Base 16 (Hexadecimal) | 1B |
| Base 20 (Vigesimal) | 17 |
Primes and factors tests for 27
| Is 27 a prime number? | 27 is not a prime number |
| Is 27 a perfect number? | 27 is not a perfect number |
| Is 27 a Mersenne prime? | 27 is not a Mersenne prime |
| Is 27 a Fermat prime? | 27 is not a Fermat prime |
| Is 27 a Fibonacci prime? | 27 is not a Fibonacci prime |
| Is 27 a partition prime? | 27 is not a partition prime |
| Is 27 a Pell prime? | 27 is not a Pell prime |
| Prime Factors | Prime factors of 27 |
27 in other numeral systems
| 27 in Roman numerals | XXVII |
| 27 in Chinese numerals | 貳拾柒 |
| 27 in Babylonian numerals |  |
| 27 in Egyptian numerals | 𓎇𓐀 |
Roots and squares for 27
| Is 27 a square number? | 27 is not a square number |
| Is 27 a cube number? | 27 is a cube number |
| Square root of 27 | 5.1961524227066 |
| Cube root of 27 | 3 |
Recreational math for 27
| Number 27 reversed | 72 |
| Sum of the digits | 9 |
| Number of digits | 2 |
Arithmetic tables for 27
Other pages about 27
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