Names of 2081
| Nominal | 2081 |
| Cardinal | two thousand eighty-one |
| Ordinal | 2,081st |
| This number as US currency | two thousand eighty-one dollars |
| Is 2081 an odd number? | 2081 is an odd number |
| Is 2081 an even number? | 2081 is NOT an even number |
| Is 2081 a palindrome? | 2081 is NOT a palindrome number |
| Is 2081 a triangle number? | 2081 is NOT a triangle number |
2081 in other Bases
| Base 2 (Binary) | 1000001000012 |
| Base 3 (Ternary) | 22120023 |
| Base 4 (Quaternary) | 2002014 |
| Base 5 (Quinary) | 313115 |
| Base 6 (Senary) | 133456 |
| Base 8 (Octal) | 40418 |
| Base 12 (Duodecimal) | 125512 |
| Base 16 (Hexadecimal) | 82116 |
| Base 20 (Vigesimal) | 54120 |
Primes and Factors tests for 2081
| Is 2081 a Prime Number? | 2081 is a prime |
| Is 2081 a perfect number? | 2081 is NOT a perfect number |
| Is 2081 a Mersenne Prime? | 2081 is NOT a Mersenne prime |
| Is 2081 a Fermat Prime? | 2081 is NOT a Fermat prime |
| Is 2081 a Fibonacci Prime? | 2081 is NOT a Fibonacci prime |
| Is 2081 a Partition Prime? | 2081 is NOT a Partition prime |
| Is 2081 a Pell Prime? | 2081 is NOT a Pell prime |
| Prime Factors | Prime factors of 2081 |
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2081 in other Numerals
| 2081 in Roman Numeral | MMLXXXI |
| 2081 in Chinese Numeral | 貳仟捌拾壹 |
| 2081 in Egyptian Numeral | 𓆽𓎍𓏺 |
| 2081 in Babylonian Numeral |   |
Roots and stuff for 2081
| Is 2081 a square number? | 2081 is NOT a square number |
| Is 2081 a cube number? | 2081 is NOT a cube number |
| Square root of the number 2081 | 45.617978911828 |
| Cube root of the number 2081 | 12.76705394443 |
Recreational math for 2081
| Number 2081 reversed | 1802 |
| Sum of the digits | 11 |
| No of digits | 4 |