Names of 21086
| Nominal | 21086 |
| Cardinal | twenty-one thousand eighty-six |
| Ordinal | 21,086th |
| This number as US currency | twenty-one thousand eighty-six dollars |
| Is 21086 an odd number? | 21086 is NOT an odd number |
| Is 21086 an even number? | 21086 is an even number |
| Is 21086 a palindrome? | 21086 is NOT a palindrome number |
| Is 21086 a triangle number? | 21086 is NOT a triangle number |
21086 in other Bases
| Base 2 (Binary) | 1010010010111102 |
| Base 3 (Ternary) | 10012202223 |
| Base 4 (Quaternary) | 110211324 |
| Base 5 (Quinary) | 11333215 |
| Base 6 (Senary) | 2413426 |
| Base 8 (Octal) | 511368 |
| Base 12 (Duodecimal) | 1025212 |
| Base 16 (Hexadecimal) | 525E16 |
| Base 20 (Vigesimal) | 2CE620 |
Primes and Factors tests for 21086
| Is 21086 a Prime Number? | 21086 is NOT a prime |
| Is 21086 a perfect number? | 21086 is NOT a perfect number |
| Is 21086 a Mersenne Prime? | 21086 is NOT a Mersenne prime |
| Is 21086 a Fermat Prime? | 21086 is NOT a Fermat prime |
| Is 21086 a Fibonacci Prime? | 21086 is NOT a Fibonacci prime |
| Is 21086 a Partition Prime? | 21086 is NOT a Partition prime |
| Is 21086 a Pell Prime? | 21086 is NOT a Pell prime |
| Prime Factors | Prime factors of 21086 |
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21086 in other Numerals
| 21086 in Roman Numeral | XXMLXXXVI |
| 21086 in Chinese Numeral | 貳萬壹仟捌拾陸 |
| 21086 in Egyptian Numeral | 𓂮𓆼𓎍𓏿 |
| 21086 in Babylonian Numeral |    |
Roots and stuff for 21086
| Is 21086 a square number? | 21086 is NOT a square number |
| Is 21086 a cube number? | 21086 is NOT a cube number |
| Square root of the number 21086 | 145.21019247973 |
| Cube root of the number 21086 | 27.626851974147 |
Recreational math for 21086
| Number 21086 reversed | 68012 |
| Sum of the digits | 17 |
| No of digits | 5 |