842009
Everything about the number 842009 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
Names of 842009
| Nominal | 842009 |
| Cardinal | eight hundred forty-two thousand nine |
| Ordinal | 842,009th |
| This number as US currency | eight hundred forty-two thousand nine dollars |
Properties (and some facts) of 842009
| Is 842009 an odd number? | 842009 is an odd number |
| Is 842009 an even number? | 842009 is not an even number |
| Is 842009 a palindrome? | 842009 is not a palindrome |
| Is 842009 a triangle number? | 842009 is not a triangle number |
842009 in other bases
| Base 2 (Binary) | 11001101100100011001 |
| Base 3 (Ternary) | 1120210000112 |
| Base 4 (Quaternary) | 3031210121 |
| Base 5 (Quinary) | 203421014 |
| Base 6 (Senary) | 30014105 |
| Base 8 (Octal) | 3154431 |
| Base 12 (Duodecimal) | 347335 |
| Base 16 (Hexadecimal) | CD919 |
| Base 20 (Vigesimal) | 55509 |
Primes and factors tests for 842009
| Is 842009 a prime number? | 842009 is not a prime number |
| Is 842009 a perfect number? | 842009 is not a perfect number |
| Is 842009 a Mersenne prime? | 842009 is not a Mersenne prime |
| Is 842009 a Fermat prime? | 842009 is not a Fermat prime |
| Is 842009 a Fibonacci prime? | 842009 is not a Fibonacci prime |
| Is 842009 a partition prime? | 842009 is not a partition prime |
| Is 842009 a Pell prime? | 842009 is not a Pell prime |
| Prime Factors | Prime factors of 842009 |
842009 in other numeral systems
| 842009 in Roman numerals | DCDCXLMMIX |
| 842009 in Chinese numerals | 捌拾萬肆萬貳仟玖 |
| 842009 in Babylonian numerals |    |
| 842009 in Egyptian numerals | 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂰𓆽𓐂 |
Roots and squares for 842009
| Is 842009 a square number? | 842009 is not a square number |
| Is 842009 a cube number? | 842009 is not a cube number |
| Square root of 842009 | 917.61048381108 |
| Cube root of 842009 | 94.429040727598 |
Recreational math for 842009
| Number 842009 reversed | 900248 |
| Sum of the digits | 23 |
| Number of digits | 6 |