Names of 42021
| Nominal | 42021 |
| Cardinal | forty-two thousand twenty-one |
| Ordinal | 42,021st |
| This number as US currency | forty-two thousand twenty-one dollars |
| Is 42021 an odd number? | 42021 is an odd number |
| Is 42021 an even number? | 42021 is NOT an even number |
| Is 42021 a palindrome? | 42021 is NOT a palindrome number |
| Is 42021 a triangle number? | 42021 is NOT a triangle number |
42021 in other Bases
| Base 2 (Binary) | 10100100001001012 |
| Base 3 (Ternary) | 20101221003 |
| Base 4 (Quaternary) | 221002114 |
| Base 5 (Quinary) | 23210415 |
| Base 6 (Senary) | 5223136 |
| Base 8 (Octal) | 1220458 |
| Base 12 (Duodecimal) | 2039912 |
| Base 16 (Hexadecimal) | A42516 |
| Base 20 (Vigesimal) | 551120 |
Primes and Factors tests for 42021
| Is 42021 a Prime Number? | 42021 is NOT a prime |
| Is 42021 a perfect number? | 42021 is NOT a perfect number |
| Is 42021 a Mersenne Prime? | 42021 is NOT a Mersenne prime |
| Is 42021 a Fermat Prime? | 42021 is NOT a Fermat prime |
| Is 42021 a Fibonacci Prime? | 42021 is NOT a Fibonacci prime |
| Is 42021 a Partition Prime? | 42021 is NOT a Partition prime |
| Is 42021 a Pell Prime? | 42021 is NOT a Pell prime |
| Prime Factors | Prime factors of 42021 |
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42021 in other Numerals
| 42021 in Roman Numeral | XLMMXXI |
| 42021 in Chinese Numeral | 肆萬貳仟貳拾壹 |
| 42021 in Egyptian Numeral | 𓂰𓆽𓎇𓏺 |
| 42021 in Babylonian Numeral |    |
Roots and stuff for 42021
| Is 42021 a square number? | 42021 is NOT a square number |
| Is 42021 a cube number? | 42021 is NOT a cube number |
| Square root of the number 42021 | 204.99024367028 |
| Cube root of the number 42021 | 34.766058861311 |
Recreational math for 42021
| Number 42021 reversed | 12024 |
| Sum of the digits | 9 |
| No of digits | 5 |