20121
Everything about the number 20121 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
Names of 20121
| Nominal | 20121 |
| Cardinal | twenty thousand one hundred twenty-one |
| Ordinal | 20,121st |
| This number as US currency | twenty thousand one hundred twenty-one dollars |
Properties (and some facts) of 20121
| Is 20121 an odd number? | 20121 is an odd number |
| Is 20121 an even number? | 20121 is not an even number |
| Is 20121 a palindrome? | 20121 is not a palindrome |
| Is 20121 a triangle number? | 20121 is not a triangle number |
20121 in other bases
| Base 2 (Binary) | 100111010011001 |
| Base 3 (Ternary) | 1000121020 |
| Base 4 (Quaternary) | 10322121 |
| Base 5 (Quinary) | 1120441 |
| Base 6 (Senary) | 233053 |
| Base 8 (Octal) | 47231 |
| Base 12 (Duodecimal) | B789 |
| Base 16 (Hexadecimal) | 4E99 |
| Base 20 (Vigesimal) | 2A61 |
Primes and factors tests for 20121
| Is 20121 a prime number? | 20121 is not a prime number |
| Is 20121 a perfect number? | 20121 is not a perfect number |
| Is 20121 a Mersenne prime? | 20121 is not a Mersenne prime |
| Is 20121 a Fermat prime? | 20121 is not a Fermat prime |
| Is 20121 a Fibonacci prime? | 20121 is not a Fibonacci prime |
| Is 20121 a partition prime? | 20121 is not a partition prime |
| Is 20121 a Pell prime? | 20121 is not a Pell prime |
| Prime Factors | Prime factors of 20121 |
20121 in other numeral systems
| 20121 in Roman numerals | XXCXXI |
| 20121 in Chinese numerals | 貳萬壹佰貳拾壹 |
| 20121 in Babylonian numerals |    |
| 20121 in Egyptian numerals | 𓂮𓍢𓎇𓏺 |
Roots and squares for 20121
| Is 20121 a square number? | 20121 is not a square number |
| Is 20121 a cube number? | 20121 is not a cube number |
| Square root of 20121 | 141.84851074298 |
| Cube root of 20121 | 27.198806896917 |
Recreational math for 20121
| Number 20121 reversed | 12102 |
| Sum of the digits | 6 |
| Number of digits | 5 |