421428
Everything about the number 421428 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
Names of 421428
| Nominal | 421428 |
| Cardinal | four hundred twenty-one thousand four hundred twenty-eight |
| Ordinal | 421,428th |
| This number as US currency | four hundred twenty-one thousand four hundred twenty-eight dollars |
Properties (and some facts) of 421428
| Is 421428 an odd number? | 421428 is not an odd number |
| Is 421428 an even number? | 421428 is an even number |
| Is 421428 a palindrome? | 421428 is not a palindrome |
| Is 421428 a triangle number? | 421428 is not a triangle number |
421428 in other bases
| Base 2 (Binary) | 1100110111000110100 |
| Base 3 (Ternary) | 210102002110 |
| Base 4 (Quaternary) | 1212320310 |
| Base 5 (Quinary) | 101441203 |
| Base 6 (Senary) | 13011020 |
| Base 8 (Octal) | 1467064 |
| Base 12 (Duodecimal) | 183A70 |
| Base 16 (Hexadecimal) | 66E34 |
| Base 20 (Vigesimal) | 2CDB8 |
Primes and factors tests for 421428
| Is 421428 a prime number? | 421428 is not a prime number |
| Is 421428 a perfect number? | 421428 is not a perfect number |
| Is 421428 a Mersenne prime? | 421428 is not a Mersenne prime |
| Is 421428 a Fermat prime? | 421428 is not a Fermat prime |
| Is 421428 a Fibonacci prime? | 421428 is not a Fibonacci prime |
| Is 421428 a partition prime? | 421428 is not a partition prime |
| Is 421428 a Pell prime? | 421428 is not a Pell prime |
| Prime Factors | Prime factors of 421428 |
421428 in other numeral systems
| 421428 in Roman numerals | CDXXMCDXXVIII |
| 421428 in Chinese numerals | 肆拾萬貳萬壹仟肆佰貳拾捌 |
| 421428 in Babylonian numerals |     |
| 421428 in Egyptian numerals | 𓆐𓆐𓆐𓆐𓂮𓆼𓍥𓎇𓐁 |
Roots and squares for 421428
| Is 421428 a square number? | 421428 is not a square number |
| Is 421428 a cube number? | 421428 is not a cube number |
| Square root of 421428 | 649.1748608811 |
| Cube root of 421428 | 74.973501750117 |
Recreational math for 421428
| Number 421428 reversed | 824124 |
| Sum of the digits | 21 |
| Number of digits | 6 |