Names of 18081
| Nominal | 18081 |
| Cardinal | eighteen thousand eighty-one |
| Ordinal | 18,081st |
| This number as US currency | eighteen thousand eighty-one dollars |
| Is 18081 an odd number? | 18081 is an odd number |
| Is 18081 an even number? | 18081 is NOT an even number |
| Is 18081 a palindrome? | 18081 is a palindrome number |
| Is 18081 a triangle number? | 18081 is NOT a triangle number |
18081 in other Bases
| Base 2 (Binary) | 1000110101000012 |
| Base 3 (Ternary) | 2202102003 |
| Base 4 (Quaternary) | 101222014 |
| Base 5 (Quinary) | 10343115 |
| Base 6 (Senary) | 2154136 |
| Base 8 (Octal) | 432418 |
| Base 12 (Duodecimal) | A56912 |
| Base 16 (Hexadecimal) | 46A116 |
| Base 20 (Vigesimal) | 254120 |
Primes and Factors tests for 18081
| Is 18081 a Prime Number? | 18081 is NOT a prime |
| Is 18081 a perfect number? | 18081 is NOT a perfect number |
| Is 18081 a Mersenne Prime? | 18081 is NOT a Mersenne prime |
| Is 18081 a Fermat Prime? | 18081 is NOT a Fermat prime |
| Is 18081 a Fibonacci Prime? | 18081 is NOT a Fibonacci prime |
| Is 18081 a Partition Prime? | 18081 is NOT a Partition prime |
| Is 18081 a Pell Prime? | 18081 is NOT a Pell prime |
| Prime Factors | Prime factors of 18081 |
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18081 in other Numerals
| 18081 in Roman Numeral | XVMMMLXXXI |
| 18081 in Chinese Numeral | 壹萬捌仟捌拾壹 |
| 18081 in Egyptian Numeral | 𓂭𓇃𓎍𓏺 |
| 18081 in Babylonian Numeral |    |
Roots and stuff for 18081
| Is 18081 a square number? | 18081 is NOT a square number |
| Is 18081 a cube number? | 18081 is NOT a cube number |
| Square root of the number 18081 | 134.46560898609 |
| Cube root of the number 18081 | 26.246666243297 |
Recreational math for 18081
| Number 18081 reversed | 18081 |
| Sum of the digits | 18 |
| No of digits | 5 |