421009
Everything about the number 421009 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
Names of 421009
| Nominal | 421009 |
| Cardinal | four hundred twenty-one thousand nine |
| Ordinal | 421,009th |
| This number as US currency | four hundred twenty-one thousand nine dollars |
Properties (and some facts) of 421009
| Is 421009 an odd number? | 421009 is an odd number |
| Is 421009 an even number? | 421009 is not an even number |
| Is 421009 a palindrome? | 421009 is not a palindrome |
| Is 421009 a triangle number? | 421009 is not a triangle number |
421009 in other bases
| Base 2 (Binary) | 1100110110010010001 |
| Base 3 (Ternary) | 210101111221 |
| Base 4 (Quaternary) | 1212302101 |
| Base 5 (Quinary) | 101433014 |
| Base 6 (Senary) | 13005041 |
| Base 8 (Octal) | 1466221 |
| Base 12 (Duodecimal) | 183781 |
| Base 16 (Hexadecimal) | 66C91 |
| Base 20 (Vigesimal) | 2CCA9 |
Primes and factors tests for 421009
| Is 421009 a prime number? | 421009 is a prime number |
| Is 421009 a perfect number? | 421009 is not a perfect number |
| Is 421009 a Mersenne prime? | 421009 is not a Mersenne prime |
| Is 421009 a Fermat prime? | 421009 is not a Fermat prime |
| Is 421009 a Fibonacci prime? | 421009 is not a Fibonacci prime |
| Is 421009 a partition prime? | 421009 is not a partition prime |
| Is 421009 a Pell prime? | 421009 is not a Pell prime |
| Prime Factors | Prime factors of 421009 |
421009 in other numeral systems
| 421009 in Roman numerals | CDXXMIX |
| 421009 in Chinese numerals | 肆拾萬貳萬壹仟玖 |
| 421009 in Babylonian numerals |    |
| 421009 in Egyptian numerals | 𓆐𓆐𓆐𓆐𓂮𓆼𓐂 |
Roots and squares for 421009
| Is 421009 a square number? | 421009 is not a square number |
| Is 421009 a cube number? | 421009 is not a cube number |
| Square root of 421009 | 648.8520632625 |
| Cube root of 421009 | 74.948646326844 |
Recreational math for 421009
| Number 421009 reversed | 900124 |
| Sum of the digits | 16 |
| Number of digits | 6 |