Names of 18138
| Nominal | 18138 |
| Cardinal | eighteen thousand one hundred thirty-eight |
| Ordinal | 18,138th |
| This number as US currency | eighteen thousand one hundred thirty-eight dollars |
| Is 18138 an odd number? | 18138 is NOT an odd number |
| Is 18138 an even number? | 18138 is an even number |
| Is 18138 a palindrome? | 18138 is NOT a palindrome number |
| Is 18138 a triangle number? | 18138 is NOT a triangle number |
18138 in other Bases
| Base 2 (Binary) | 1000110110110102 |
| Base 3 (Ternary) | 2202122103 |
| Base 4 (Quaternary) | 101231224 |
| Base 5 (Quinary) | 10400235 |
| Base 6 (Senary) | 2155506 |
| Base 8 (Octal) | 433328 |
| Base 12 (Duodecimal) | A5B612 |
| Base 16 (Hexadecimal) | 46DA16 |
| Base 20 (Vigesimal) | 256I20 |
Primes and Factors tests for 18138
| Is 18138 a Prime Number? | 18138 is NOT a prime |
| Is 18138 a perfect number? | 18138 is NOT a perfect number |
| Is 18138 a Mersenne Prime? | 18138 is NOT a Mersenne prime |
| Is 18138 a Fermat Prime? | 18138 is NOT a Fermat prime |
| Is 18138 a Fibonacci Prime? | 18138 is NOT a Fibonacci prime |
| Is 18138 a Partition Prime? | 18138 is NOT a Partition prime |
| Is 18138 a Pell Prime? | 18138 is NOT a Pell prime |
| Prime Factors | Prime factors of 18138 |
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18138 in other Numerals
| 18138 in Roman Numeral | XVMMMCXXXVIII |
| 18138 in Chinese Numeral | 壹萬捌仟壹佰叄拾捌 |
| 18138 in Egyptian Numeral | 𓂭𓇃𓍢𓎈𓐁 |
| 18138 in Babylonian Numeral |    |
Roots and stuff for 18138
| Is 18138 a square number? | 18138 is NOT a square number |
| Is 18138 a cube number? | 18138 is NOT a cube number |
| Square root of the number 18138 | 134.67739231215 |
| Cube root of the number 18138 | 26.274218012621 |
Recreational math for 18138
| Number 18138 reversed | 83181 |
| Sum of the digits | 21 |
| No of digits | 5 |