21040
Everything about the number 21040 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
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Names of 21040
| Nominal | 21040 |
| Cardinal | twenty-one thousand forty |
| Ordinal | 21,040th |
| This number as US currency | twenty-one thousand forty dollars |
Properties (and some facts) of 21040
| Is 21040 an odd number? | 21040 is not an odd number |
| Is 21040 an even number? | 21040 is an even number |
| Is 21040 a palindrome? | 21040 is not a palindrome |
| Is 21040 a triangle number? | 21040 is not a triangle number |
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21040 in other bases
| Base 2 (Binary) | 101001000110000 |
| Base 3 (Ternary) | 1001212021 |
| Base 4 (Quaternary) | 11020300 |
| Base 5 (Quinary) | 1133130 |
| Base 6 (Senary) | 241224 |
| Base 8 (Octal) | 51060 |
| Base 12 (Duodecimal) | 10214 |
| Base 16 (Hexadecimal) | 5230 |
| Base 20 (Vigesimal) | 2CC0 |
Primes and factors tests for 21040
| Is 21040 a prime number? | 21040 is not a prime number |
| Is 21040 a perfect number? | 21040 is not a perfect number |
| Is 21040 a Mersenne prime? | 21040 is not a Mersenne prime |
| Is 21040 a Fermat prime? | 21040 is not a Fermat prime |
| Is 21040 a Fibonacci prime? | 21040 is not a Fibonacci prime |
| Is 21040 a partition prime? | 21040 is not a partition prime |
| Is 21040 a Pell prime? | 21040 is not a Pell prime |
| Prime Factors | Prime factors of 21040 |
21040 in other numeral systems
| 21040 in Roman numerals | XXMXL |
| 21040 in Chinese numerals | 貳萬壹仟肆拾 |
| 21040 in Babylonian numerals |    |
| 21040 in Egyptian numerals | 𓂮𓆼𓎉 |
Roots and squares for 21040
| Is 21040 a square number? | 21040 is not a square number |
| Is 21040 a cube number? | 21040 is not a cube number |
| Square root of 21040 | 145.05171491575 |
| Cube root of 21040 | 27.606747632572 |
Recreational math for 21040
| Number 21040 reversed | 04012 |
| Sum of the digits | 7 |
| Number of digits | 5 |
Other pages about 21040
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