Names of 40021
| Nominal | 40021 |
| Cardinal | forty thousand twenty-one |
| Ordinal | 40,021st |
| This number as US currency | forty thousand twenty-one dollars |
| Is 40021 an odd number? | 40021 is an odd number |
| Is 40021 an even number? | 40021 is NOT an even number |
| Is 40021 a palindrome? | 40021 is NOT a palindrome number |
| Is 40021 a triangle number? | 40021 is NOT a triangle number |
40021 in other Bases
| Base 2 (Binary) | 10011100010101012 |
| Base 3 (Ternary) | 20002200213 |
| Base 4 (Quaternary) | 213011114 |
| Base 5 (Quinary) | 22400415 |
| Base 6 (Senary) | 5051416 |
| Base 8 (Octal) | 1161258 |
| Base 12 (Duodecimal) | 1B1B112 |
| Base 16 (Hexadecimal) | 9C5516 |
| Base 20 (Vigesimal) | 501120 |
Primes and Factors tests for 40021
| Is 40021 a Prime Number? | 40021 is NOT a prime |
| Is 40021 a perfect number? | 40021 is NOT a perfect number |
| Is 40021 a Mersenne Prime? | 40021 is NOT a Mersenne prime |
| Is 40021 a Fermat Prime? | 40021 is NOT a Fermat prime |
| Is 40021 a Fibonacci Prime? | 40021 is NOT a Fibonacci prime |
| Is 40021 a Partition Prime? | 40021 is NOT a Partition prime |
| Is 40021 a Pell Prime? | 40021 is NOT a Pell prime |
| Prime Factors | Prime factors of 40021 |
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40021 in other Numerals
| 40021 in Roman Numeral | XLXXI |
| 40021 in Chinese Numeral | 肆萬貳拾壹 |
| 40021 in Egyptian Numeral | 𓂰𓎇𓏺 |
| 40021 in Babylonian Numeral |    |
Roots and stuff for 40021
| Is 40021 a square number? | 40021 is NOT a square number |
| Is 40021 a cube number? | 40021 is NOT a cube number |
| Square root of the number 40021 | 200.05249311118 |
| Cube root of the number 40021 | 34.205502802292 |
Recreational math for 40021
| Number 40021 reversed | 12004 |
| Sum of the digits | 7 |
| No of digits | 5 |