Everything about the number 538 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
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| Nominal | 538 |
| Cardinal | five hundred thirty-eight |
| Ordinal | 538th |
| This number as US currency | five hundred thirty-eight dollars |
| Is 538 an odd number? | 538 is not an odd number |
| Is 538 an even number? | 538 is an even number |
| Is 538 a palindrome? | 538 is not a palindrome |
| Is 538 a triangle number? | 538 is not a triangle number |
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| Base 2 (Binary) | 1000011010 |
| Base 3 (Ternary) | 201221 |
| Base 4 (Quaternary) | 20122 |
| Base 5 (Quinary) | 4123 |
| Base 6 (Senary) | 2254 |
| Base 8 (Octal) | 1032 |
| Base 12 (Duodecimal) | 38A |
| Base 16 (Hexadecimal) | 21A |
| Base 20 (Vigesimal) | 16I |
| Is 538 a prime number? | 538 is not a prime number |
| Is 538 a perfect number? | 538 is not a perfect number |
| Is 538 a Mersenne prime? | 538 is not a Mersenne prime |
| Is 538 a Fermat prime? | 538 is not a Fermat prime |
| Is 538 a Fibonacci prime? | 538 is not a Fibonacci prime |
| Is 538 a partition prime? | 538 is not a partition prime |
| Is 538 a Pell prime? | 538 is not a Pell prime |
| Prime Factors | Prime factors of 538 |
| 538 in Roman numerals | DXXXVIII |
| 538 in Chinese numerals | 伍佰叄拾捌 |
| 538 in Babylonian numerals | ![]() |
| 538 in Egyptian numerals | 𓍦𓎈𓐁 |
| Is 538 a square number? | 538 is not a square number |
| Is 538 a cube number? | 538 is not a cube number |
| Square root of 538 | 23.194827009486 |
| Cube root of 538 | 8.133187014 |
| Number 538 reversed | 835 |
| Sum of the digits | 16 |
| Number of digits | 3 |
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