400409
Everything about the number 400409 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
Names of 400409
| Nominal | 400409 |
| Cardinal | four hundred thousand four hundred nine |
| Ordinal | 400,409th |
| This number as US currency | four hundred thousand four hundred nine dollars |
Properties (and some facts) of 400409
| Is 400409 an odd number? | 400409 is an odd number |
| Is 400409 an even number? | 400409 is not an even number |
| Is 400409 a palindrome? | 400409 is not a palindrome |
| Is 400409 a triangle number? | 400409 is not a triangle number |
400409 in other bases
| Base 2 (Binary) | 1100001110000011001 |
| Base 3 (Ternary) | 202100020222 |
| Base 4 (Quaternary) | 1201300121 |
| Base 5 (Quinary) | 100303114 |
| Base 6 (Senary) | 12325425 |
| Base 8 (Octal) | 1416031 |
| Base 12 (Duodecimal) | 173875 |
| Base 16 (Hexadecimal) | 61C19 |
| Base 20 (Vigesimal) | 2A109 |
Primes and factors tests for 400409
| Is 400409 a prime number? | 400409 is a prime number |
| Is 400409 a perfect number? | 400409 is not a perfect number |
| Is 400409 a Mersenne prime? | 400409 is not a Mersenne prime |
| Is 400409 a Fermat prime? | 400409 is not a Fermat prime |
| Is 400409 a Fibonacci prime? | 400409 is not a Fibonacci prime |
| Is 400409 a partition prime? | 400409 is not a partition prime |
| Is 400409 a Pell prime? | 400409 is not a Pell prime |
| Prime Factors | Prime factors of 400409 |
400409 in other numeral systems
| 400409 in Roman numerals | CDCDIX |
| 400409 in Chinese numerals | 肆拾萬肆佰玖 |
| 400409 in Babylonian numerals |     |
| 400409 in Egyptian numerals | 𓆐𓆐𓆐𓆐𓍥𓐂 |
Roots and squares for 400409
| Is 400409 a square number? | 400409 is not a square number |
| Is 400409 a cube number? | 400409 is not a cube number |
| Square root of 400409 | 632.77879231213 |
| Cube root of 400409 | 73.705734233098 |
Recreational math for 400409
| Number 400409 reversed | 904004 |
| Sum of the digits | 17 |
| Number of digits | 6 |