Names of 81216
| Nominal | 81216 |
| Cardinal | eighty-one thousand two hundred sixteen |
| Ordinal | 81,216th |
| This number as US currency | eighty-one thousand two hundred sixteen dollars |
| Is 81216 an odd number? | 81216 is NOT an odd number |
| Is 81216 an even number? | 81216 is an even number |
| Is 81216 a palindrome? | 81216 is NOT a palindrome number |
| Is 81216 a triangle number? | 81216 is NOT a triangle number |
81216 in other Bases
| Base 2 (Binary) | 100111101010000002 |
| Base 3 (Ternary) | 110101020003 |
| Base 4 (Quaternary) | 1033110004 |
| Base 5 (Quinary) | 100443315 |
| Base 6 (Senary) | 14240006 |
| Base 8 (Octal) | 2365008 |
| Base 12 (Duodecimal) | 3B00012 |
| Base 16 (Hexadecimal) | 13D4016 |
| Base 20 (Vigesimal) | A30G20 |
Primes and Factors tests for 81216
| Is 81216 a Prime Number? | 81216 is NOT a prime |
| Is 81216 a perfect number? | 81216 is NOT a perfect number |
| Is 81216 a Mersenne Prime? | 81216 is NOT a Mersenne prime |
| Is 81216 a Fermat Prime? | 81216 is NOT a Fermat prime |
| Is 81216 a Fibonacci Prime? | 81216 is NOT a Fibonacci prime |
| Is 81216 a Partition Prime? | 81216 is NOT a Partition prime |
| Is 81216 a Pell Prime? | 81216 is NOT a Pell prime |
| Prime Factors | Prime factors of 81216 |
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81216 in other Numerals
| 81216 in Roman Numeral | LXXXMCCXVI |
| 81216 in Chinese Numeral | 捌萬壹仟貳佰壹拾陸 |
| 81216 in Egyptian Numeral | 𓂴𓆼𓍣𓎆𓏿 |
| 81216 in Babylonian Numeral |    |
Roots and stuff for 81216
| Is 81216 a square number? | 81216 is NOT a square number |
| Is 81216 a cube number? | 81216 is NOT a cube number |
| Square root of the number 81216 | 284.98421008891 |
| Cube root of the number 81216 | 43.305912961664 |
Recreational math for 81216
| Number 81216 reversed | 61218 |
| Sum of the digits | 18 |
| No of digits | 5 |