Names of 21290
| Nominal | 21290 |
| Cardinal | twenty-one thousand two hundred ninety |
| Ordinal | 21,290th |
| This number as US currency | twenty-one thousand two hundred ninety dollars |
| Is 21290 an odd number? | 21290 is NOT an odd number |
| Is 21290 an even number? | 21290 is an even number |
| Is 21290 a palindrome? | 21290 is NOT a palindrome number |
| Is 21290 a triangle number? | 21290 is NOT a triangle number |
21290 in other Bases
| Base 2 (Binary) | 1010011001010102 |
| Base 3 (Ternary) | 10020121123 |
| Base 4 (Quaternary) | 110302224 |
| Base 5 (Quinary) | 11401305 |
| Base 6 (Senary) | 2423226 |
| Base 8 (Octal) | 514528 |
| Base 12 (Duodecimal) | 103A212 |
| Base 16 (Hexadecimal) | 532A16 |
| Base 20 (Vigesimal) | 2D4A20 |
Primes and Factors tests for 21290
| Is 21290 a Prime Number? | 21290 is NOT a prime |
| Is 21290 a perfect number? | 21290 is NOT a perfect number |
| Is 21290 a Mersenne Prime? | 21290 is NOT a Mersenne prime |
| Is 21290 a Fermat Prime? | 21290 is NOT a Fermat prime |
| Is 21290 a Fibonacci Prime? | 21290 is NOT a Fibonacci prime |
| Is 21290 a Partition Prime? | 21290 is NOT a Partition prime |
| Is 21290 a Pell Prime? | 21290 is NOT a Pell prime |
| Prime Factors | Prime factors of 21290 |
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21290 in other Numerals
| 21290 in Roman Numeral | XXMCCXC |
| 21290 in Chinese Numeral | 貳萬壹仟貳佰玖拾 |
| 21290 in Egyptian Numeral | 𓂮𓆼𓍣𓎎 |
| 21290 in Babylonian Numeral |    |
Roots and stuff for 21290
| Is 21290 a square number? | 21290 is NOT a square number |
| Is 21290 a cube number? | 21290 is NOT a cube number |
| Square root of the number 21290 | 145.91093173577 |
| Cube root of the number 21290 | 27.715659710511 |
Recreational math for 21290
| Number 21290 reversed | 09212 |
| Sum of the digits | 14 |
| No of digits | 5 |