Names of 18161
| Nominal | 18161 |
| Cardinal | eighteen thousand one hundred sixty-one |
| Ordinal | 18,161st |
| This number as US currency | eighteen thousand one hundred sixty-one dollars |
| Is 18161 an odd number? | 18161 is an odd number |
| Is 18161 an even number? | 18161 is NOT an even number |
| Is 18161 a palindrome? | 18161 is NOT a palindrome number |
| Is 18161 a triangle number? | 18161 is NOT a triangle number |
18161 in other Bases
| Base 2 (Binary) | 1000110111100012 |
| Base 3 (Ternary) | 2202201223 |
| Base 4 (Quaternary) | 101233014 |
| Base 5 (Quinary) | 10401215 |
| Base 6 (Senary) | 2200256 |
| Base 8 (Octal) | 433618 |
| Base 12 (Duodecimal) | A61512 |
| Base 16 (Hexadecimal) | 46F116 |
| Base 20 (Vigesimal) | 258120 |
Primes and Factors tests for 18161
| Is 18161 a Prime Number? | 18161 is NOT a prime |
| Is 18161 a perfect number? | 18161 is NOT a perfect number |
| Is 18161 a Mersenne Prime? | 18161 is NOT a Mersenne prime |
| Is 18161 a Fermat Prime? | 18161 is NOT a Fermat prime |
| Is 18161 a Fibonacci Prime? | 18161 is NOT a Fibonacci prime |
| Is 18161 a Partition Prime? | 18161 is NOT a Partition prime |
| Is 18161 a Pell Prime? | 18161 is NOT a Pell prime |
| Prime Factors | Prime factors of 18161 |
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18161 in other Numerals
| 18161 in Roman Numeral | XVMMMCLXI |
| 18161 in Chinese Numeral | 壹萬捌仟壹佰陸拾壹 |
| 18161 in Egyptian Numeral | 𓂭𓇃𓍢𓎋𓏺 |
| 18161 in Babylonian Numeral |    |
Roots and stuff for 18161
| Is 18161 a square number? | 18161 is NOT a square number |
| Is 18161 a cube number? | 18161 is NOT a cube number |
| Square root of the number 18161 | 134.76275449841 |
| Cube root of the number 18161 | 26.285319048427 |
Recreational math for 18161
| Number 18161 reversed | 16181 |
| Sum of the digits | 17 |
| No of digits | 5 |