Names of 81481
| Nominal | 81481 |
| Cardinal | eighty-one thousand four hundred eighty-one |
| Ordinal | 81,481st |
| This number as US currency | eighty-one thousand four hundred eighty-one dollars |
| Is 81481 an odd number? | 81481 is an odd number |
| Is 81481 an even number? | 81481 is NOT an even number |
| Is 81481 a palindrome? | 81481 is NOT a palindrome number |
| Is 81481 a triangle number? | 81481 is NOT a triangle number |
81481 in other Bases
| Base 2 (Binary) | 100111110010010012 |
| Base 3 (Ternary) | 110102022113 |
| Base 4 (Quaternary) | 1033210214 |
| Base 5 (Quinary) | 101014115 |
| Base 6 (Senary) | 14251216 |
| Base 8 (Octal) | 2371118 |
| Base 12 (Duodecimal) | 3B1A112 |
| Base 16 (Hexadecimal) | 13E4916 |
| Base 20 (Vigesimal) | A3E120 |
Primes and Factors tests for 81481
| Is 81481 a Prime Number? | 81481 is NOT a prime |
| Is 81481 a perfect number? | 81481 is NOT a perfect number |
| Is 81481 a Mersenne Prime? | 81481 is NOT a Mersenne prime |
| Is 81481 a Fermat Prime? | 81481 is NOT a Fermat prime |
| Is 81481 a Fibonacci Prime? | 81481 is NOT a Fibonacci prime |
| Is 81481 a Partition Prime? | 81481 is NOT a Partition prime |
| Is 81481 a Pell Prime? | 81481 is NOT a Pell prime |
| Prime Factors | Prime factors of 81481 |
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81481 in other Numerals
| 81481 in Roman Numeral | LXXXMCDLXXXI |
| 81481 in Chinese Numeral | 捌萬壹仟肆佰捌拾壹 |
| 81481 in Egyptian Numeral | 𓂴𓆼𓍥𓎍𓏺 |
| 81481 in Babylonian Numeral |    |
Roots and stuff for 81481
| Is 81481 a square number? | 81481 is NOT a square number |
| Is 81481 a cube number? | 81481 is NOT a cube number |
| Square root of the number 81481 | 285.44876948412 |
| Cube root of the number 81481 | 43.352962835844 |
Recreational math for 81481
| Number 81481 reversed | 18418 |
| Sum of the digits | 22 |
| No of digits | 5 |