Names of 21982
| Nominal | 21982 |
| Cardinal | twenty-one thousand nine hundred eighty-two |
| Ordinal | 21,982nd |
| This number as US currency | twenty-one thousand nine hundred eighty-two dollars |
| Is 21982 an odd number? | 21982 is NOT an odd number |
| Is 21982 an even number? | 21982 is an even number |
| Is 21982 a palindrome? | 21982 is NOT a palindrome number |
| Is 21982 a triangle number? | 21982 is NOT a triangle number |
21982 in other Bases
| Base 2 (Binary) | 1010101110111102 |
| Base 3 (Ternary) | 10100110113 |
| Base 4 (Quaternary) | 111131324 |
| Base 5 (Quinary) | 12004125 |
| Base 6 (Senary) | 2454346 |
| Base 8 (Octal) | 527368 |
| Base 12 (Duodecimal) | 1087A12 |
| Base 16 (Hexadecimal) | 55DE16 |
| Base 20 (Vigesimal) | 2EJ220 |
Primes and Factors tests for 21982
| Is 21982 a Prime Number? | 21982 is NOT a prime |
| Is 21982 a perfect number? | 21982 is NOT a perfect number |
| Is 21982 a Mersenne Prime? | 21982 is NOT a Mersenne prime |
| Is 21982 a Fermat Prime? | 21982 is NOT a Fermat prime |
| Is 21982 a Fibonacci Prime? | 21982 is NOT a Fibonacci prime |
| Is 21982 a Partition Prime? | 21982 is NOT a Partition prime |
| Is 21982 a Pell Prime? | 21982 is NOT a Pell prime |
| Prime Factors | Prime factors of 21982 |
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21982 in other Numerals
| 21982 in Roman Numeral | XXMCMLXXXII |
| 21982 in Chinese Numeral | 貳萬壹仟玖佰捌拾貳 |
| 21982 in Egyptian Numeral | 𓂮𓆼𓍪𓎍𓏻 |
| 21982 in Babylonian Numeral |   |
Roots and stuff for 21982
| Is 21982 a square number? | 21982 is NOT a square number |
| Is 21982 a cube number? | 21982 is NOT a cube number |
| Square root of the number 21982 | 148.26327933781 |
| Cube root of the number 21982 | 28.012749295997 |
Recreational math for 21982
| Number 21982 reversed | 28912 |
| Sum of the digits | 22 |
| No of digits | 5 |