249
Everything about the number 249 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
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Names of 249
| Nominal | 249 |
| Cardinal | two hundred forty-nine |
| Ordinal | 249th |
| This number as US currency | two hundred forty-nine dollars |
Properties (and some facts) of 249
| Is 249 an odd number? | 249 is an odd number |
| Is 249 an even number? | 249 is not an even number |
| Is 249 a palindrome? | 249 is not a palindrome |
| Is 249 a triangle number? | 249 is not a triangle number |
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249 in other bases
| Base 2 (Binary) | 11111001 |
| Base 3 (Ternary) | 100020 |
| Base 4 (Quaternary) | 3321 |
| Base 5 (Quinary) | 1444 |
| Base 6 (Senary) | 1053 |
| Base 8 (Octal) | 371 |
| Base 12 (Duodecimal) | 189 |
| Base 16 (Hexadecimal) | F9 |
| Base 20 (Vigesimal) | C9 |
Primes and factors tests for 249
| Is 249 a prime number? | 249 is not a prime number |
| Is 249 a perfect number? | 249 is not a perfect number |
| Is 249 a Mersenne prime? | 249 is not a Mersenne prime |
| Is 249 a Fermat prime? | 249 is not a Fermat prime |
| Is 249 a Fibonacci prime? | 249 is not a Fibonacci prime |
| Is 249 a partition prime? | 249 is not a partition prime |
| Is 249 a Pell prime? | 249 is not a Pell prime |
| Prime Factors | Prime factors of 249 |
249 in other numeral systems
| 249 in Roman numerals | CCXLIX |
| 249 in Chinese numerals | 貳佰肆拾玖 |
| 249 in Babylonian numerals |   |
| 249 in Egyptian numerals | 𓍣𓎉𓐂 |
Roots and squares for 249
| Is 249 a square number? | 249 is not a square number |
| Is 249 a cube number? | 249 is not a cube number |
| Square root of 249 | 15.779733838059 |
| Cube root of 249 | 6.2911945515563 |
Recreational math for 249
| Number 249 reversed | 942 |
| Sum of the digits | 15 |
| Number of digits | 3 |
Arithmetic tables for 249
Other pages about 249
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