421409
Everything about the number 421409 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
Names of 421409
| Nominal | 421409 |
| Cardinal | four hundred twenty-one thousand four hundred nine |
| Ordinal | 421,409th |
| This number as US currency | four hundred twenty-one thousand four hundred nine dollars |
Properties (and some facts) of 421409
| Is 421409 an odd number? | 421409 is an odd number |
| Is 421409 an even number? | 421409 is not an even number |
| Is 421409 a palindrome? | 421409 is not a palindrome |
| Is 421409 a triangle number? | 421409 is not a triangle number |
421409 in other bases
| Base 2 (Binary) | 1100110111000100001 |
| Base 3 (Ternary) | 210102001202 |
| Base 4 (Quaternary) | 1212320201 |
| Base 5 (Quinary) | 101441114 |
| Base 6 (Senary) | 13010545 |
| Base 8 (Octal) | 1467041 |
| Base 12 (Duodecimal) | 183A55 |
| Base 16 (Hexadecimal) | 66E21 |
| Base 20 (Vigesimal) | 2CDA9 |
Primes and factors tests for 421409
| Is 421409 a prime number? | 421409 is a prime number |
| Is 421409 a perfect number? | 421409 is not a perfect number |
| Is 421409 a Mersenne prime? | 421409 is not a Mersenne prime |
| Is 421409 a Fermat prime? | 421409 is not a Fermat prime |
| Is 421409 a Fibonacci prime? | 421409 is not a Fibonacci prime |
| Is 421409 a partition prime? | 421409 is not a partition prime |
| Is 421409 a Pell prime? | 421409 is not a Pell prime |
| Prime Factors | Prime factors of 421409 |
421409 in other numeral systems
| 421409 in Roman numerals | CDXXMCDIX |
| 421409 in Chinese numerals | 肆拾萬貳萬壹仟肆佰玖 |
| 421409 in Babylonian numerals |     |
| 421409 in Egyptian numerals | 𓆐𓆐𓆐𓆐𓂮𓆼𓍥𓐂 |
Roots and squares for 421409
| Is 421409 a square number? | 421409 is not a square number |
| Is 421409 a cube number? | 421409 is not a cube number |
| Square root of 421409 | 649.16022675454 |
| Cube root of 421409 | 74.972375011234 |
Recreational math for 421409
| Number 421409 reversed | 904124 |
| Sum of the digits | 20 |
| Number of digits | 6 |