40081
Everything about the number 40081 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
Names of 40081
| Nominal | 40081 |
| Cardinal | forty thousand eighty-one |
| Ordinal | 40,081st |
| This number as US currency | forty thousand eighty-one dollars |
Properties (and some facts) of 40081
| Is 40081 an odd number? | 40081 is an odd number |
| Is 40081 an even number? | 40081 is not an even number |
| Is 40081 a palindrome? | 40081 is not a palindrome |
| Is 40081 a triangle number? | 40081 is not a triangle number |
40081 in other bases
| Base 2 (Binary) | 1001110010010001 |
| Base 3 (Ternary) | 2000222111 |
| Base 4 (Quaternary) | 21302101 |
| Base 5 (Quinary) | 2240311 |
| Base 6 (Senary) | 505321 |
| Base 8 (Octal) | 116221 |
| Base 12 (Duodecimal) | 1B241 |
| Base 16 (Hexadecimal) | 9C91 |
| Base 20 (Vigesimal) | 5041 |
Primes and factors tests for 40081
| Is 40081 a prime number? | 40081 is not a prime number |
| Is 40081 a perfect number? | 40081 is not a perfect number |
| Is 40081 a Mersenne prime? | 40081 is not a Mersenne prime |
| Is 40081 a Fermat prime? | 40081 is not a Fermat prime |
| Is 40081 a Fibonacci prime? | 40081 is not a Fibonacci prime |
| Is 40081 a partition prime? | 40081 is not a partition prime |
| Is 40081 a Pell prime? | 40081 is not a Pell prime |
| Prime Factors | Prime factors of 40081 |
40081 in other numeral systems
| 40081 in Roman numerals | XLLXXXI |
| 40081 in Chinese numerals | 肆萬捌拾壹 |
| 40081 in Babylonian numerals |    |
| 40081 in Egyptian numerals | 𓂰𓎍𓏺 |
Roots and squares for 40081
| Is 40081 a square number? | 40081 is not a square number |
| Is 40081 a cube number? | 40081 is not a cube number |
| Square root of 40081 | 200.20239758804 |
| Cube root of 40081 | 34.222588044165 |
Recreational math for 40081
| Number 40081 reversed | 18004 |
| Sum of the digits | 13 |
| Number of digits | 5 |