Names of 81040
| Nominal | 81040 |
| Cardinal | eighty-one thousand forty |
| Ordinal | 81,040th |
| This number as US currency | eighty-one thousand forty dollars |
| Is 81040 an odd number? | 81040 is NOT an odd number |
| Is 81040 an even number? | 81040 is an even number |
| Is 81040 a palindrome? | 81040 is NOT a palindrome number |
| Is 81040 a triangle number? | 81040 is NOT a triangle number |
81040 in other Bases
| Base 2 (Binary) | 100111100100100002 |
| Base 3 (Ternary) | 110100111113 |
| Base 4 (Quaternary) | 1033021004 |
| Base 5 (Quinary) | 100431305 |
| Base 6 (Senary) | 14231046 |
| Base 8 (Octal) | 2362208 |
| Base 12 (Duodecimal) | 3AA9412 |
| Base 16 (Hexadecimal) | 13C9016 |
| Base 20 (Vigesimal) | A2C020 |
Primes and Factors tests for 81040
| Is 81040 a Prime Number? | 81040 is NOT a prime |
| Is 81040 a perfect number? | 81040 is NOT a perfect number |
| Is 81040 a Mersenne Prime? | 81040 is NOT a Mersenne prime |
| Is 81040 a Fermat Prime? | 81040 is NOT a Fermat prime |
| Is 81040 a Fibonacci Prime? | 81040 is NOT a Fibonacci prime |
| Is 81040 a Partition Prime? | 81040 is NOT a Partition prime |
| Is 81040 a Pell Prime? | 81040 is NOT a Pell prime |
| Prime Factors | Prime factors of 81040 |
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81040 in other Numerals
| 81040 in Roman Numeral | LXXXMXL |
| 81040 in Chinese Numeral | 捌萬壹仟肆拾 |
| 81040 in Egyptian Numeral | 𓂴𓆼𓎉 |
| 81040 in Babylonian Numeral |    |
Roots and stuff for 81040
| Is 81040 a square number? | 81040 is NOT a square number |
| Is 81040 a cube number? | 81040 is NOT a cube number |
| Square root of the number 81040 | 284.67525357853 |
| Cube root of the number 81040 | 43.274608157262 |
Recreational math for 81040
| Number 81040 reversed | 04018 |
| Sum of the digits | 13 |
| No of digits | 5 |