505
Everything about the number 505 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
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Names of 505
| Nominal | 505 |
| Cardinal | five hundred five |
| Ordinal | 505th |
| This number as US currency | five hundred five dollars |
Properties (and some facts) of 505
| Is 505 an odd number? | 505 is an odd number |
| Is 505 an even number? | 505 is not an even number |
| Is 505 a palindrome? | 505 is a palindrome |
| Is 505 a triangle number? | 505 is not a triangle number |
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505 in other bases
| Base 2 (Binary) | 111111001 |
| Base 3 (Ternary) | 200201 |
| Base 4 (Quaternary) | 13321 |
| Base 5 (Quinary) | 4010 |
| Base 6 (Senary) | 2201 |
| Base 8 (Octal) | 771 |
| Base 12 (Duodecimal) | 361 |
| Base 16 (Hexadecimal) | 1F9 |
| Base 20 (Vigesimal) | 155 |
Primes and factors tests for 505
| Is 505 a prime number? | 505 is not a prime number |
| Is 505 a perfect number? | 505 is not a perfect number |
| Is 505 a Mersenne prime? | 505 is not a Mersenne prime |
| Is 505 a Fermat prime? | 505 is not a Fermat prime |
| Is 505 a Fibonacci prime? | 505 is not a Fibonacci prime |
| Is 505 a partition prime? | 505 is not a partition prime |
| Is 505 a Pell prime? | 505 is not a Pell prime |
| Prime Factors | Prime factors of 505 |
505 in other numeral systems
| 505 in Roman numerals | DV |
| 505 in Chinese numerals | 伍佰伍 |
| 505 in Babylonian numerals |   |
| 505 in Egyptian numerals | 𓍦𓏾 |
Roots and squares for 505
| Is 505 a square number? | 505 is not a square number |
| Is 505 a cube number? | 505 is not a cube number |
| Square root of 505 | 22.472205054244 |
| Cube root of 505 | 7.9633742417892 |
Recreational math for 505
| Number 505 reversed | 505 |
| Sum of the digits | 10 |
| Number of digits | 3 |
Arithmetic tables for 505
Other pages about 505
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