Names of 18989
| Nominal | 18989 |
| Cardinal | eighteen thousand nine hundred eighty-nine |
| Ordinal | 18,989th |
| This number as US currency | eighteen thousand nine hundred eighty-nine dollars |
| Is 18989 an odd number? | 18989 is an odd number |
| Is 18989 an even number? | 18989 is NOT an even number |
| Is 18989 a palindrome? | 18989 is NOT a palindrome number |
| Is 18989 a triangle number? | 18989 is NOT a triangle number |
18989 in other Bases
| Base 2 (Binary) | 1001010001011012 |
| Base 3 (Ternary) | 2220010223 |
| Base 4 (Quaternary) | 102202314 |
| Base 5 (Quinary) | 11014245 |
| Base 6 (Senary) | 2235256 |
| Base 8 (Octal) | 450558 |
| Base 12 (Duodecimal) | ABA512 |
| Base 16 (Hexadecimal) | 4A2D16 |
| Base 20 (Vigesimal) | 279920 |
Primes and Factors tests for 18989
| Is 18989 a Prime Number? | 18989 is NOT a prime |
| Is 18989 a perfect number? | 18989 is NOT a perfect number |
| Is 18989 a Mersenne Prime? | 18989 is NOT a Mersenne prime |
| Is 18989 a Fermat Prime? | 18989 is NOT a Fermat prime |
| Is 18989 a Fibonacci Prime? | 18989 is NOT a Fibonacci prime |
| Is 18989 a Partition Prime? | 18989 is NOT a Partition prime |
| Is 18989 a Pell Prime? | 18989 is NOT a Pell prime |
| Prime Factors | Prime factors of 18989 |
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18989 in other Numerals
| 18989 in Roman Numeral | XVMMMCMLXXXIX |
| 18989 in Chinese Numeral | 壹萬捌仟玖佰捌拾玖 |
| 18989 in Egyptian Numeral | 𓂭𓇃𓍪𓎍𓐂 |
| 18989 in Babylonian Numeral |    |
Roots and stuff for 18989
| Is 18989 a square number? | 18989 is NOT a square number |
| Is 18989 a cube number? | 18989 is NOT a cube number |
| Square root of the number 18989 | 137.8005805503 |
| Cube root of the number 18989 | 26.678865946086 |
Recreational math for 18989
| Number 18989 reversed | 98981 |
| Sum of the digits | 35 |
| No of digits | 5 |