33
Everything about the number 33 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
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Names of 33
| Nominal | 33 |
| Cardinal | thirty-three |
| Ordinal | 33rd |
| This number as US currency | thirty-three dollars |
Properties (and some facts) of 33
| Is 33 an odd number? | 33 is an odd number |
| Is 33 an even number? | 33 is not an even number |
| Is 33 a palindrome? | 33 is a palindrome |
| Is 33 a triangle number? | 33 is not a triangle number |
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33 in other bases
| Base 2 (Binary) | 100001 |
| Base 3 (Ternary) | 1020 |
| Base 4 (Quaternary) | 201 |
| Base 5 (Quinary) | 113 |
| Base 6 (Senary) | 53 |
| Base 8 (Octal) | 41 |
| Base 12 (Duodecimal) | 29 |
| Base 16 (Hexadecimal) | 21 |
| Base 20 (Vigesimal) | 1D |
Primes and factors tests for 33
| Is 33 a prime number? | 33 is not a prime number |
| Is 33 a perfect number? | 33 is not a perfect number |
| Is 33 a Mersenne prime? | 33 is not a Mersenne prime |
| Is 33 a Fermat prime? | 33 is not a Fermat prime |
| Is 33 a Fibonacci prime? | 33 is not a Fibonacci prime |
| Is 33 a partition prime? | 33 is not a partition prime |
| Is 33 a Pell prime? | 33 is not a Pell prime |
| Prime Factors | Prime factors of 33 |
33 in other numeral systems
| 33 in Roman numerals | XXXIII |
| 33 in Chinese numerals | 叄拾叄 |
| 33 in Babylonian numerals |  |
| 33 in Egyptian numerals | 𓎈𓏼 |
Roots and squares for 33
| Is 33 a square number? | 33 is not a square number |
| Is 33 a cube number? | 33 is not a cube number |
| Square root of 33 | 5.744562646538 |
| Cube root of 33 | 3.2075343299958 |
Recreational math for 33
| Number 33 reversed | 33 |
| Sum of the digits | 6 |
| Number of digits | 2 |
Arithmetic tables for 33
Other pages about 33
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