Names of 21940
| Nominal | 21940 |
| Cardinal | twenty-one thousand nine hundred forty |
| Ordinal | 21,940th |
| This number as US currency | twenty-one thousand nine hundred forty dollars |
| Is 21940 an odd number? | 21940 is NOT an odd number |
| Is 21940 an even number? | 21940 is an even number |
| Is 21940 a palindrome? | 21940 is NOT a palindrome number |
| Is 21940 a triangle number? | 21940 is NOT a triangle number |
21940 in other Bases
| Base 2 (Binary) | 1010101101101002 |
| Base 3 (Ternary) | 10100021213 |
| Base 4 (Quaternary) | 111123104 |
| Base 5 (Quinary) | 12002305 |
| Base 6 (Senary) | 2453246 |
| Base 8 (Octal) | 526648 |
| Base 12 (Duodecimal) | 1084412 |
| Base 16 (Hexadecimal) | 55B416 |
| Base 20 (Vigesimal) | 2EH020 |
Primes and Factors tests for 21940
| Is 21940 a Prime Number? | 21940 is NOT a prime |
| Is 21940 a perfect number? | 21940 is NOT a perfect number |
| Is 21940 a Mersenne Prime? | 21940 is NOT a Mersenne prime |
| Is 21940 a Fermat Prime? | 21940 is NOT a Fermat prime |
| Is 21940 a Fibonacci Prime? | 21940 is NOT a Fibonacci prime |
| Is 21940 a Partition Prime? | 21940 is NOT a Partition prime |
| Is 21940 a Pell Prime? | 21940 is NOT a Pell prime |
| Prime Factors | Prime factors of 21940 |
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21940 in other Numerals
| 21940 in Roman Numeral | XXMCMXL |
| 21940 in Chinese Numeral | 貳萬壹仟玖佰肆拾 |
| 21940 in Egyptian Numeral | 𓂮𓆼𓍪𓎉 |
| 21940 in Babylonian Numeral |    |
Roots and stuff for 21940
| Is 21940 a square number? | 21940 is NOT a square number |
| Is 21940 a cube number? | 21940 is NOT a cube number |
| Square root of the number 21940 | 148.12157169028 |
| Cube root of the number 21940 | 27.994897029229 |
Recreational math for 21940
| Number 21940 reversed | 04912 |
| Sum of the digits | 16 |
| No of digits | 5 |