Names of 81013
| Nominal | 81013 |
| Cardinal | eighty-one thousand thirteen |
| Ordinal | 81,013th |
| This number as US currency | eighty-one thousand thirteen dollars |
| Is 81013 an odd number? | 81013 is an odd number |
| Is 81013 an even number? | 81013 is NOT an even number |
| Is 81013 a palindrome? | 81013 is NOT a palindrome number |
| Is 81013 a triangle number? | 81013 is NOT a triangle number |
81013 in other Bases
| Base 2 (Binary) | 100111100011101012 |
| Base 3 (Ternary) | 110100101113 |
| Base 4 (Quaternary) | 1033013114 |
| Base 5 (Quinary) | 100430235 |
| Base 6 (Senary) | 14230216 |
| Base 8 (Octal) | 2361658 |
| Base 12 (Duodecimal) | 3AA7112 |
| Base 16 (Hexadecimal) | 13C7516 |
| Base 20 (Vigesimal) | A2AD20 |
Primes and Factors tests for 81013
| Is 81013 a Prime Number? | 81013 is a prime |
| Is 81013 a perfect number? | 81013 is NOT a perfect number |
| Is 81013 a Mersenne Prime? | 81013 is NOT a Mersenne prime |
| Is 81013 a Fermat Prime? | 81013 is NOT a Fermat prime |
| Is 81013 a Fibonacci Prime? | 81013 is NOT a Fibonacci prime |
| Is 81013 a Partition Prime? | 81013 is NOT a Partition prime |
| Is 81013 a Pell Prime? | 81013 is NOT a Pell prime |
| Prime Factors | Prime factors of 81013 |
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81013 in other Numerals
| 81013 in Roman Numeral | LXXXMXIII |
| 81013 in Chinese Numeral | 捌萬壹仟壹拾叄 |
| 81013 in Egyptian Numeral | 𓂴𓆼𓎆𓏼 |
| 81013 in Babylonian Numeral |    |
Roots and stuff for 81013
| Is 81013 a square number? | 81013 is NOT a square number |
| Is 81013 a cube number? | 81013 is NOT a cube number |
| Square root of the number 81013 | 284.62782717085 |
| Cube root of the number 81013 | 43.269801706933 |
Recreational math for 81013
| Number 81013 reversed | 31018 |
| Sum of the digits | 13 |
| No of digits | 5 |