Names of 20081
| Nominal | 20081 |
| Cardinal | twenty thousand eighty-one |
| Ordinal | 20,081st |
| This number as US currency | twenty thousand eighty-one dollars |
| Is 20081 an odd number? | 20081 is an odd number |
| Is 20081 an even number? | 20081 is NOT an even number |
| Is 20081 a palindrome? | 20081 is NOT a palindrome number |
| Is 20081 a triangle number? | 20081 is NOT a triangle number |
20081 in other Bases
| Base 2 (Binary) | 1001110011100012 |
| Base 3 (Ternary) | 10001122023 |
| Base 4 (Quaternary) | 103213014 |
| Base 5 (Quinary) | 11203115 |
| Base 6 (Senary) | 2325456 |
| Base 8 (Octal) | 471618 |
| Base 12 (Duodecimal) | B75512 |
| Base 16 (Hexadecimal) | 4E7116 |
| Base 20 (Vigesimal) | 2A4120 |
Primes and Factors tests for 20081
| Is 20081 a Prime Number? | 20081 is NOT a prime |
| Is 20081 a perfect number? | 20081 is NOT a perfect number |
| Is 20081 a Mersenne Prime? | 20081 is NOT a Mersenne prime |
| Is 20081 a Fermat Prime? | 20081 is NOT a Fermat prime |
| Is 20081 a Fibonacci Prime? | 20081 is NOT a Fibonacci prime |
| Is 20081 a Partition Prime? | 20081 is NOT a Partition prime |
| Is 20081 a Pell Prime? | 20081 is NOT a Pell prime |
| Prime Factors | Prime factors of 20081 |
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20081 in other Numerals
| 20081 in Roman Numeral | XXLXXXI |
| 20081 in Chinese Numeral | 貳萬捌拾壹 |
| 20081 in Egyptian Numeral | 𓂮𓎍𓏺 |
| 20081 in Babylonian Numeral |    |
Roots and stuff for 20081
| Is 20081 a square number? | 20081 is NOT a square number |
| Is 20081 a cube number? | 20081 is NOT a cube number |
| Square root of the number 20081 | 141.7074451114 |
| Cube root of the number 20081 | 27.18077144452 |
Recreational math for 20081
| Number 20081 reversed | 18002 |
| Sum of the digits | 11 |
| No of digits | 5 |