Names of 21085
| Nominal | 21085 |
| Cardinal | twenty-one thousand eighty-five |
| Ordinal | 21,085th |
| This number as US currency | twenty-one thousand eighty-five dollars |
| Is 21085 an odd number? | 21085 is an odd number |
| Is 21085 an even number? | 21085 is NOT an even number |
| Is 21085 a palindrome? | 21085 is NOT a palindrome number |
| Is 21085 a triangle number? | 21085 is NOT a triangle number |
21085 in other Bases
| Base 2 (Binary) | 1010010010111012 |
| Base 3 (Ternary) | 10012202213 |
| Base 4 (Quaternary) | 110211314 |
| Base 5 (Quinary) | 11333205 |
| Base 6 (Senary) | 2413416 |
| Base 8 (Octal) | 511358 |
| Base 12 (Duodecimal) | 1025112 |
| Base 16 (Hexadecimal) | 525D16 |
| Base 20 (Vigesimal) | 2CE520 |
Primes and Factors tests for 21085
| Is 21085 a Prime Number? | 21085 is NOT a prime |
| Is 21085 a perfect number? | 21085 is NOT a perfect number |
| Is 21085 a Mersenne Prime? | 21085 is NOT a Mersenne prime |
| Is 21085 a Fermat Prime? | 21085 is NOT a Fermat prime |
| Is 21085 a Fibonacci Prime? | 21085 is NOT a Fibonacci prime |
| Is 21085 a Partition Prime? | 21085 is NOT a Partition prime |
| Is 21085 a Pell Prime? | 21085 is NOT a Pell prime |
| Prime Factors | Prime factors of 21085 |
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21085 in other Numerals
| 21085 in Roman Numeral | XXMLXXXV |
| 21085 in Chinese Numeral | 貳萬壹仟捌拾伍 |
| 21085 in Egyptian Numeral | 𓂮𓆼𓎍𓏾 |
| 21085 in Babylonian Numeral |    |
Roots and stuff for 21085
| Is 21085 a square number? | 21085 is NOT a square number |
| Is 21085 a cube number? | 21085 is NOT a cube number |
| Square root of the number 21085 | 145.20674915444 |
| Cube root of the number 21085 | 27.626415234308 |
Recreational math for 21085
| Number 21085 reversed | 58012 |
| Sum of the digits | 16 |
| No of digits | 5 |