842021
Everything about the number 842021 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
Names of 842021
| Nominal | 842021 |
| Cardinal | eight hundred forty-two thousand twenty-one |
| Ordinal | 842,021st |
| This number as US currency | eight hundred forty-two thousand twenty-one dollars |
Properties (and some facts) of 842021
| Is 842021 an odd number? | 842021 is an odd number |
| Is 842021 an even number? | 842021 is not an even number |
| Is 842021 a palindrome? | 842021 is not a palindrome |
| Is 842021 a triangle number? | 842021 is not a triangle number |
842021 in other bases
| Base 2 (Binary) | 11001101100100100101 |
| Base 3 (Ternary) | 1120210000222 |
| Base 4 (Quaternary) | 3031210211 |
| Base 5 (Quinary) | 203421041 |
| Base 6 (Senary) | 30014125 |
| Base 8 (Octal) | 3154445 |
| Base 12 (Duodecimal) | 347345 |
| Base 16 (Hexadecimal) | CD925 |
| Base 20 (Vigesimal) | 55511 |
Primes and factors tests for 842021
| Is 842021 a prime number? | 842021 is a prime number |
| Is 842021 a perfect number? | 842021 is not a perfect number |
| Is 842021 a Mersenne prime? | 842021 is not a Mersenne prime |
| Is 842021 a Fermat prime? | 842021 is not a Fermat prime |
| Is 842021 a Fibonacci prime? | 842021 is not a Fibonacci prime |
| Is 842021 a partition prime? | 842021 is not a partition prime |
| Is 842021 a Pell prime? | 842021 is not a Pell prime |
| Prime Factors | Prime factors of 842021 |
842021 in other numeral systems
| 842021 in Roman numerals | DCDCXLMMXXI |
| 842021 in Chinese numerals | 捌拾萬肆萬貳仟貳拾壹 |
| 842021 in Babylonian numerals |    |
| 842021 in Egyptian numerals | 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂰𓆽𓎇𓏺 |
Roots and squares for 842021
| Is 842021 a square number? | 842021 is not a square number |
| Is 842021 a cube number? | 842021 is not a cube number |
| Square root of 842021 | 917.61702250994 |
| Cube root of 842021 | 94.42948931469 |
Recreational math for 842021
| Number 842021 reversed | 120248 |
| Sum of the digits | 17 |
| Number of digits | 6 |