Names of 20989
| Nominal | 20989 |
| Cardinal | twenty thousand nine hundred eighty-nine |
| Ordinal | 20,989th |
| This number as US currency | twenty thousand nine hundred eighty-nine dollars |
| Is 20989 an odd number? | 20989 is an odd number |
| Is 20989 an even number? | 20989 is NOT an even number |
| Is 20989 a palindrome? | 20989 is NOT a palindrome number |
| Is 20989 a triangle number? | 20989 is NOT a triangle number |
20989 in other Bases
| Base 2 (Binary) | 1010001111111012 |
| Base 3 (Ternary) | 10012101013 |
| Base 4 (Quaternary) | 110133314 |
| Base 5 (Quinary) | 11324245 |
| Base 6 (Senary) | 2411016 |
| Base 8 (Octal) | 507758 |
| Base 12 (Duodecimal) | 1019112 |
| Base 16 (Hexadecimal) | 51FD16 |
| Base 20 (Vigesimal) | 2C9920 |
Primes and Factors tests for 20989
| Is 20989 a Prime Number? | 20989 is NOT a prime |
| Is 20989 a perfect number? | 20989 is NOT a perfect number |
| Is 20989 a Mersenne Prime? | 20989 is NOT a Mersenne prime |
| Is 20989 a Fermat Prime? | 20989 is NOT a Fermat prime |
| Is 20989 a Fibonacci Prime? | 20989 is NOT a Fibonacci prime |
| Is 20989 a Partition Prime? | 20989 is NOT a Partition prime |
| Is 20989 a Pell Prime? | 20989 is NOT a Pell prime |
| Prime Factors | Prime factors of 20989 |
Sponsored
20989 in other Numerals
| 20989 in Roman Numeral | XXCMLXXXIX |
| 20989 in Chinese Numeral | 貳萬玖佰捌拾玖 |
| 20989 in Egyptian Numeral | 𓂮𓍪𓎍𓐂 |
| 20989 in Babylonian Numeral |   |
Roots and stuff for 20989
| Is 20989 a square number? | 20989 is NOT a square number |
| Is 20989 a cube number? | 20989 is NOT a cube number |
| Square root of the number 20989 | 144.87580888471 |
| Cube root of the number 20989 | 27.584423753276 |
Recreational math for 20989
| Number 20989 reversed | 98902 |
| Sum of the digits | 28 |
| No of digits | 5 |