18121
Everything about the number 18121 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
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Names of 18121
| Nominal | 18121 |
| Cardinal | eighteen thousand one hundred twenty-one |
| Ordinal | 18,121st |
| This number as US currency | eighteen thousand one hundred twenty-one dollars |
Properties (and some facts) of 18121
| Is 18121 an odd number? | 18121 is an odd number |
| Is 18121 an even number? | 18121 is not an even number |
| Is 18121 a palindrome? | 18121 is not a palindrome |
| Is 18121 a triangle number? | 18121 is not a triangle number |
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18121 in other bases
| Base 2 (Binary) | 100011011001001 |
| Base 3 (Ternary) | 220212011 |
| Base 4 (Quaternary) | 10123021 |
| Base 5 (Quinary) | 1034441 |
| Base 6 (Senary) | 215521 |
| Base 8 (Octal) | 43311 |
| Base 12 (Duodecimal) | A5A1 |
| Base 16 (Hexadecimal) | 46C9 |
| Base 20 (Vigesimal) | 2561 |
Primes and factors tests for 18121
| Is 18121 a prime number? | 18121 is a prime number |
| Is 18121 a perfect number? | 18121 is not a perfect number |
| Is 18121 a Mersenne prime? | 18121 is not a Mersenne prime |
| Is 18121 a Fermat prime? | 18121 is not a Fermat prime |
| Is 18121 a Fibonacci prime? | 18121 is not a Fibonacci prime |
| Is 18121 a partition prime? | 18121 is not a partition prime |
| Is 18121 a Pell prime? | 18121 is not a Pell prime |
| Prime Factors | Prime factors of 18121 |
18121 in other numeral systems
| 18121 in Roman numerals | XVMMMCXXI |
| 18121 in Chinese numerals | 壹萬捌仟壹佰貳拾壹 |
| 18121 in Babylonian numerals |    |
| 18121 in Egyptian numerals | 𓂭𓇃𓍢𓎇𓏺 |
Roots and squares for 18121
| Is 18121 a square number? | 18121 is not a square number |
| Is 18121 a cube number? | 18121 is not a cube number |
| Square root of 18121 | 134.6142637316 |
| Cube root of 18121 | 26.266006866137 |
Recreational math for 18121
| Number 18121 reversed | 12181 |
| Sum of the digits | 13 |
| Number of digits | 5 |
Other pages about 18121
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