243
Everything about the number 243 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
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Names of 243
| Nominal | 243 |
| Cardinal | two hundred forty-three |
| Ordinal | 243rd |
| This number as US currency | two hundred forty-three dollars |
Properties (and some facts) of 243
| Is 243 an odd number? | 243 is an odd number |
| Is 243 an even number? | 243 is not an even number |
| Is 243 a palindrome? | 243 is not a palindrome |
| Is 243 a triangle number? | 243 is not a triangle number |
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243 in other bases
| Base 2 (Binary) | 11110011 |
| Base 3 (Ternary) | 100000 |
| Base 4 (Quaternary) | 3303 |
| Base 5 (Quinary) | 1433 |
| Base 6 (Senary) | 1043 |
| Base 8 (Octal) | 363 |
| Base 12 (Duodecimal) | 183 |
| Base 16 (Hexadecimal) | F3 |
| Base 20 (Vigesimal) | C3 |
Primes and factors tests for 243
| Is 243 a prime number? | 243 is not a prime number |
| Is 243 a perfect number? | 243 is not a perfect number |
| Is 243 a Mersenne prime? | 243 is not a Mersenne prime |
| Is 243 a Fermat prime? | 243 is not a Fermat prime |
| Is 243 a Fibonacci prime? | 243 is not a Fibonacci prime |
| Is 243 a partition prime? | 243 is not a partition prime |
| Is 243 a Pell prime? | 243 is not a Pell prime |
| Prime Factors | Prime factors of 243 |
243 in other numeral systems
| 243 in Roman numerals | CCXLIII |
| 243 in Chinese numerals | 貳佰肆拾叄 |
| 243 in Babylonian numerals |   |
| 243 in Egyptian numerals | 𓍣𓎉𓏼 |
Roots and squares for 243
| Is 243 a square number? | 243 is not a square number |
| Is 243 a cube number? | 243 is not a cube number |
| Square root of 243 | 15.58845726812 |
| Cube root of 243 | 6.2402514691557 |
Recreational math for 243
| Number 243 reversed | 342 |
| Sum of the digits | 9 |
| Number of digits | 3 |
Arithmetic tables for 243
Other pages about 243
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