Names of 1291
| Nominal | 1291 |
| Cardinal | one thousand two hundred ninety-one |
| Ordinal | 1,291st |
| This number as US currency | one thousand two hundred ninety-one dollars |
| Is 1291 an odd number? | 1291 is an odd number |
| Is 1291 an even number? | 1291 is NOT an even number |
| Is 1291 a palindrome? | 1291 is NOT a palindrome number |
| Is 1291 a triangle number? | 1291 is NOT a triangle number |
1291 in other Bases
| Base 2 (Binary) | 101000010112 |
| Base 3 (Ternary) | 12022113 |
| Base 4 (Quaternary) | 1100234 |
| Base 5 (Quinary) | 201315 |
| Base 6 (Senary) | 55516 |
| Base 8 (Octal) | 24138 |
| Base 12 (Duodecimal) | 8B712 |
| Base 16 (Hexadecimal) | 50B16 |
| Base 20 (Vigesimal) | 34B20 |
Primes and Factors tests for 1291
| Is 1291 a Prime Number? | 1291 is a prime |
| Is 1291 a perfect number? | 1291 is NOT a perfect number |
| Is 1291 a Mersenne Prime? | 1291 is NOT a Mersenne prime |
| Is 1291 a Fermat Prime? | 1291 is NOT a Fermat prime |
| Is 1291 a Fibonacci Prime? | 1291 is NOT a Fibonacci prime |
| Is 1291 a Partition Prime? | 1291 is NOT a Partition prime |
| Is 1291 a Pell Prime? | 1291 is NOT a Pell prime |
| Prime Factors | Prime factors of 1291 |
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1291 in other Numerals
| 1291 in Roman Numeral | MCCXCI |
| 1291 in Chinese Numeral | 壹仟貳佰玖拾壹 |
| 1291 in Egyptian Numeral | 𓆼𓍣𓎎𓏺 |
| 1291 in Babylonian Numeral |   |
Roots and stuff for 1291
| Is 1291 a square number? | 1291 is NOT a square number |
| Is 1291 a cube number? | 1291 is NOT a cube number |
| Square root of the number 1291 | 35.930488446443 |
| Cube root of the number 1291 | 10.888684494906 |
Recreational math for 1291
| Number 1291 reversed | 1921 |
| Sum of the digits | 13 |
| No of digits | 4 |