Everything about the number 441 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
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| Nominal | 441 |
| Cardinal | four hundred forty-one |
| Ordinal | 441st |
| This number as US currency | four hundred forty-one dollars |
| Is 441 an odd number? | 441 is an odd number |
| Is 441 an even number? | 441 is not an even number |
| Is 441 a palindrome? | 441 is not a palindrome |
| Is 441 a triangle number? | 441 is not a triangle number |
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| Base 2 (Binary) | 110111001 |
| Base 3 (Ternary) | 121100 |
| Base 4 (Quaternary) | 12321 |
| Base 5 (Quinary) | 3231 |
| Base 6 (Senary) | 2013 |
| Base 8 (Octal) | 671 |
| Base 12 (Duodecimal) | 309 |
| Base 16 (Hexadecimal) | 1B9 |
| Base 20 (Vigesimal) | 121 |
| Is 441 a prime number? | 441 is not a prime number |
| Is 441 a perfect number? | 441 is not a perfect number |
| Is 441 a Mersenne prime? | 441 is not a Mersenne prime |
| Is 441 a Fermat prime? | 441 is not a Fermat prime |
| Is 441 a Fibonacci prime? | 441 is not a Fibonacci prime |
| Is 441 a partition prime? | 441 is not a partition prime |
| Is 441 a Pell prime? | 441 is not a Pell prime |
| Prime Factors | Prime factors of 441 |
| 441 in Roman numerals | CDXLI |
| 441 in Chinese numerals | 肆佰肆拾壹 |
| 441 in Babylonian numerals | ![]() |
| 441 in Egyptian numerals | 𓍥𓎉𓏺 |
| Is 441 a square number? | 441 is a square number |
| Is 441 a cube number? | 441 is not a cube number |
| Square root of 441 | 21 |
| Cube root of 441 | 7.6116626110202 |
| Number 441 reversed | 144 |
| Sum of the digits | 9 |
| Number of digits | 3 |
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