421221
Everything about the number 421221 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
Names of 421221
| Nominal | 421221 |
| Cardinal | four hundred twenty-one thousand two hundred twenty-one |
| Ordinal | 421,221st |
| This number as US currency | four hundred twenty-one thousand two hundred twenty-one dollars |
Properties (and some facts) of 421221
| Is 421221 an odd number? | 421221 is an odd number |
| Is 421221 an even number? | 421221 is not an even number |
| Is 421221 a palindrome? | 421221 is not a palindrome |
| Is 421221 a triangle number? | 421221 is not a triangle number |
421221 in other bases
| Base 2 (Binary) | 1100110110101100101 |
| Base 3 (Ternary) | 210101210210 |
| Base 4 (Quaternary) | 1212311211 |
| Base 5 (Quinary) | 101434341 |
| Base 6 (Senary) | 13010033 |
| Base 8 (Octal) | 1466545 |
| Base 12 (Duodecimal) | 183919 |
| Base 16 (Hexadecimal) | 66D65 |
| Base 20 (Vigesimal) | 2CD11 |
Primes and factors tests for 421221
| Is 421221 a prime number? | 421221 is not a prime number |
| Is 421221 a perfect number? | 421221 is not a perfect number |
| Is 421221 a Mersenne prime? | 421221 is not a Mersenne prime |
| Is 421221 a Fermat prime? | 421221 is not a Fermat prime |
| Is 421221 a Fibonacci prime? | 421221 is not a Fibonacci prime |
| Is 421221 a partition prime? | 421221 is not a partition prime |
| Is 421221 a Pell prime? | 421221 is not a Pell prime |
| Prime Factors | Prime factors of 421221 |
421221 in other numeral systems
| 421221 in Roman numerals | CDXXMCCXXI |
| 421221 in Chinese numerals | 肆拾萬貳萬壹仟貳佰貳拾壹 |
| 421221 in Babylonian numerals |    |
| 421221 in Egyptian numerals | 𓆐𓆐𓆐𓆐𓂮𓆼𓍣𓎇𓏺 |
Roots and squares for 421221
| Is 421221 a square number? | 421221 is not a square number |
| Is 421221 a cube number? | 421221 is not a cube number |
| Square root of 421221 | 649.01540813759 |
| Cube root of 421221 | 74.961224400605 |
Recreational math for 421221
| Number 421221 reversed | 122124 |
| Sum of the digits | 12 |
| Number of digits | 6 |