Names of 42991
| Nominal | 42991 |
| Cardinal | forty-two thousand nine hundred ninety-one |
| Ordinal | 42,991st |
| This number as US currency | forty-two thousand nine hundred ninety-one dollars |
| Is 42991 an odd number? | 42991 is an odd number |
| Is 42991 an even number? | 42991 is NOT an even number |
| Is 42991 a palindrome? | 42991 is NOT a palindrome number |
| Is 42991 a triangle number? | 42991 is NOT a triangle number |
42991 in other Bases
| Base 2 (Binary) | 10100111111011112 |
| Base 3 (Ternary) | 20112220213 |
| Base 4 (Quaternary) | 221332334 |
| Base 5 (Quinary) | 23334315 |
| Base 6 (Senary) | 5310116 |
| Base 8 (Octal) | 1237578 |
| Base 12 (Duodecimal) | 20A6712 |
| Base 16 (Hexadecimal) | A7EF16 |
| Base 20 (Vigesimal) | 579B20 |
Primes and Factors tests for 42991
| Is 42991 a Prime Number? | 42991 is NOT a prime |
| Is 42991 a perfect number? | 42991 is NOT a perfect number |
| Is 42991 a Mersenne Prime? | 42991 is NOT a Mersenne prime |
| Is 42991 a Fermat Prime? | 42991 is NOT a Fermat prime |
| Is 42991 a Fibonacci Prime? | 42991 is NOT a Fibonacci prime |
| Is 42991 a Partition Prime? | 42991 is NOT a Partition prime |
| Is 42991 a Pell Prime? | 42991 is NOT a Pell prime |
| Prime Factors | Prime factors of 42991 |
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42991 in other Numerals
| 42991 in Roman Numeral | XLMMCMXCI |
| 42991 in Chinese Numeral | 肆萬貳仟玖佰玖拾壹 |
| 42991 in Egyptian Numeral | 𓂰𓆽𓍪𓎎𓏺 |
| 42991 in Babylonian Numeral |    |
Roots and stuff for 42991
| Is 42991 a square number? | 42991 is NOT a square number |
| Is 42991 a cube number? | 42991 is NOT a cube number |
| Square root of the number 42991 | 207.34271147065 |
| Cube root of the number 42991 | 35.031536202115 |
Recreational math for 42991
| Number 42991 reversed | 19924 |
| Sum of the digits | 25 |
| No of digits | 5 |