421440
Everything about the number 421440 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
Names of 421440
| Nominal | 421440 |
| Cardinal | four hundred twenty-one thousand four hundred forty |
| Ordinal | 421,440th |
| This number as US currency | four hundred twenty-one thousand four hundred forty dollars |
Properties (and some facts) of 421440
| Is 421440 an odd number? | 421440 is not an odd number |
| Is 421440 an even number? | 421440 is an even number |
| Is 421440 a palindrome? | 421440 is not a palindrome |
| Is 421440 a triangle number? | 421440 is not a triangle number |
421440 in other bases
| Base 2 (Binary) | 1100110111001000000 |
| Base 3 (Ternary) | 210102002220 |
| Base 4 (Quaternary) | 1212321000 |
| Base 5 (Quinary) | 101441230 |
| Base 6 (Senary) | 13011040 |
| Base 8 (Octal) | 1467100 |
| Base 12 (Duodecimal) | 183A80 |
| Base 16 (Hexadecimal) | 66E40 |
| Base 20 (Vigesimal) | 2CDC0 |
Primes and factors tests for 421440
| Is 421440 a prime number? | 421440 is not a prime number |
| Is 421440 a perfect number? | 421440 is not a perfect number |
| Is 421440 a Mersenne prime? | 421440 is not a Mersenne prime |
| Is 421440 a Fermat prime? | 421440 is not a Fermat prime |
| Is 421440 a Fibonacci prime? | 421440 is not a Fibonacci prime |
| Is 421440 a partition prime? | 421440 is not a partition prime |
| Is 421440 a Pell prime? | 421440 is not a Pell prime |
| Prime Factors | Prime factors of 421440 |
421440 in other numeral systems
| 421440 in Roman numerals | CDXXMCDXL |
| 421440 in Chinese numerals | 肆拾萬貳萬壹仟肆佰肆拾 |
| 421440 in Babylonian numerals |    |
| 421440 in Egyptian numerals | 𓆐𓆐𓆐𓆐𓂮𓆼𓍥𓎉 |
Roots and squares for 421440
| Is 421440 a square number? | 421440 is not a square number |
| Is 421440 a cube number? | 421440 is not a cube number |
| Square root of 421440 | 649.18410331739 |
| Cube root of 421440 | 74.974213357226 |
Recreational math for 421440
| Number 421440 reversed | 044124 |
| Sum of the digits | 15 |
| Number of digits | 6 |