Names of 40991
| Nominal | 40991 |
| Cardinal | forty thousand nine hundred ninety-one |
| Ordinal | 40,991st |
| This number as US currency | forty thousand nine hundred ninety-one dollars |
| Is 40991 an odd number? | 40991 is an odd number |
| Is 40991 an even number? | 40991 is NOT an even number |
| Is 40991 a palindrome? | 40991 is NOT a palindrome number |
| Is 40991 a triangle number? | 40991 is NOT a triangle number |
40991 in other Bases
| Base 2 (Binary) | 10100000000111112 |
| Base 3 (Ternary) | 20020200123 |
| Base 4 (Quaternary) | 220001334 |
| Base 5 (Quinary) | 23024315 |
| Base 6 (Senary) | 5134356 |
| Base 8 (Octal) | 1200378 |
| Base 12 (Duodecimal) | 1B87B12 |
| Base 16 (Hexadecimal) | A01F16 |
| Base 20 (Vigesimal) | 529B20 |
Primes and Factors tests for 40991
| Is 40991 a Prime Number? | 40991 is NOT a prime |
| Is 40991 a perfect number? | 40991 is NOT a perfect number |
| Is 40991 a Mersenne Prime? | 40991 is NOT a Mersenne prime |
| Is 40991 a Fermat Prime? | 40991 is NOT a Fermat prime |
| Is 40991 a Fibonacci Prime? | 40991 is NOT a Fibonacci prime |
| Is 40991 a Partition Prime? | 40991 is NOT a Partition prime |
| Is 40991 a Pell Prime? | 40991 is NOT a Pell prime |
| Prime Factors | Prime factors of 40991 |
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40991 in other Numerals
| 40991 in Roman Numeral | XLCMXCI |
| 40991 in Chinese Numeral | 肆萬玖佰玖拾壹 |
| 40991 in Egyptian Numeral | 𓂰𓍪𓎎𓏺 |
| 40991 in Babylonian Numeral |   |
Roots and stuff for 40991
| Is 40991 a square number? | 40991 is NOT a square number |
| Is 40991 a cube number? | 40991 is NOT a cube number |
| Square root of the number 40991 | 202.4623421775 |
| Cube root of the number 40991 | 34.479649133403 |
Recreational math for 40991
| Number 40991 reversed | 19904 |
| Sum of the digits | 23 |
| No of digits | 5 |