Names of 81980
| Nominal | 81980 |
| Cardinal | eighty-one thousand nine hundred eighty |
| Ordinal | 81,980th |
| This number as US currency | eighty-one thousand nine hundred eighty dollars |
| Is 81980 an odd number? | 81980 is NOT an odd number |
| Is 81980 an even number? | 81980 is an even number |
| Is 81980 a palindrome? | 81980 is NOT a palindrome number |
| Is 81980 a triangle number? | 81980 is NOT a triangle number |
81980 in other Bases
| Base 2 (Binary) | 101000000001111002 |
| Base 3 (Ternary) | 110111100223 |
| Base 4 (Quaternary) | 1100003304 |
| Base 5 (Quinary) | 101104105 |
| Base 6 (Senary) | 14313126 |
| Base 8 (Octal) | 2400748 |
| Base 12 (Duodecimal) | 3B53812 |
| Base 16 (Hexadecimal) | 1403C16 |
| Base 20 (Vigesimal) | A4J020 |
Primes and Factors tests for 81980
| Is 81980 a Prime Number? | 81980 is NOT a prime |
| Is 81980 a perfect number? | 81980 is NOT a perfect number |
| Is 81980 a Mersenne Prime? | 81980 is NOT a Mersenne prime |
| Is 81980 a Fermat Prime? | 81980 is NOT a Fermat prime |
| Is 81980 a Fibonacci Prime? | 81980 is NOT a Fibonacci prime |
| Is 81980 a Partition Prime? | 81980 is NOT a Partition prime |
| Is 81980 a Pell Prime? | 81980 is NOT a Pell prime |
| Prime Factors | Prime factors of 81980 |
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81980 in other Numerals
| 81980 in Roman Numeral | LXXXMCMLXXX |
| 81980 in Chinese Numeral | 捌萬壹仟玖佰捌拾 |
| 81980 in Egyptian Numeral | 𓂴𓆼𓍪𓎍 |
| 81980 in Babylonian Numeral |    |
Roots and stuff for 81980
| Is 81980 a square number? | 81980 is NOT a square number |
| Is 81980 a cube number? | 81980 is NOT a cube number |
| Square root of the number 81980 | 286.32149762112 |
| Cube root of the number 81980 | 43.441282471716 |
Recreational math for 81980
| Number 81980 reversed | 08918 |
| Sum of the digits | 26 |
| No of digits | 5 |