Names of 1989
| Nominal | 1989 |
| Cardinal | one thousand nine hundred eighty-nine |
| Ordinal | 1,989th |
| This number as US currency | one thousand nine hundred eighty-nine dollars |
| Is 1989 an odd number? | 1989 is an odd number |
| Is 1989 an even number? | 1989 is NOT an even number |
| Is 1989 a palindrome? | 1989 is NOT a palindrome number |
| Is 1989 a triangle number? | 1989 is NOT a triangle number |
1989 in other Bases
| Base 2 (Binary) | 111110001012 |
| Base 3 (Ternary) | 22012003 |
| Base 4 (Quaternary) | 1330114 |
| Base 5 (Quinary) | 304245 |
| Base 6 (Senary) | 131136 |
| Base 8 (Octal) | 37058 |
| Base 12 (Duodecimal) | 119912 |
| Base 16 (Hexadecimal) | 7C516 |
| Base 20 (Vigesimal) | 4J920 |
Primes and Factors tests for 1989
| Is 1989 a Prime Number? | 1989 is NOT a prime |
| Is 1989 a perfect number? | 1989 is NOT a perfect number |
| Is 1989 a Mersenne Prime? | 1989 is NOT a Mersenne prime |
| Is 1989 a Fermat Prime? | 1989 is NOT a Fermat prime |
| Is 1989 a Fibonacci Prime? | 1989 is NOT a Fibonacci prime |
| Is 1989 a Partition Prime? | 1989 is NOT a Partition prime |
| Is 1989 a Pell Prime? | 1989 is NOT a Pell prime |
| Prime Factors | Prime factors of 1989 |
Sponsored
1989 in other Numerals
| 1989 in Roman Numeral | MCMLXXXIX |
| 1989 in Chinese Numeral | 壹仟玖佰捌拾玖 |
| 1989 in Egyptian Numeral | 𓆼𓍪𓎍𓐂 |
| 1989 in Babylonian Numeral |   |
Roots and stuff for 1989
| Is 1989 a square number? | 1989 is NOT a square number |
| Is 1989 a cube number? | 1989 is NOT a cube number |
| Square root of the number 1989 | 44.598206241956 |
| Cube root of the number 1989 | 12.57606946915 |
Recreational math for 1989
| Number 1989 reversed | 9891 |
| Sum of the digits | 27 |
| No of digits | 4 |