Names of 20990
| Nominal | 20990 |
| Cardinal | twenty thousand nine hundred ninety |
| Ordinal | 20,990th |
| This number as US currency | twenty thousand nine hundred ninety dollars |
| Is 20990 an odd number? | 20990 is NOT an odd number |
| Is 20990 an even number? | 20990 is an even number |
| Is 20990 a palindrome? | 20990 is NOT a palindrome number |
| Is 20990 a triangle number? | 20990 is NOT a triangle number |
20990 in other Bases
| Base 2 (Binary) | 1010001111111102 |
| Base 3 (Ternary) | 10012101023 |
| Base 4 (Quaternary) | 110133324 |
| Base 5 (Quinary) | 11324305 |
| Base 6 (Senary) | 2411026 |
| Base 8 (Octal) | 507768 |
| Base 12 (Duodecimal) | 1019212 |
| Base 16 (Hexadecimal) | 51FE16 |
| Base 20 (Vigesimal) | 2C9A20 |
Primes and Factors tests for 20990
| Is 20990 a Prime Number? | 20990 is NOT a prime |
| Is 20990 a perfect number? | 20990 is NOT a perfect number |
| Is 20990 a Mersenne Prime? | 20990 is NOT a Mersenne prime |
| Is 20990 a Fermat Prime? | 20990 is NOT a Fermat prime |
| Is 20990 a Fibonacci Prime? | 20990 is NOT a Fibonacci prime |
| Is 20990 a Partition Prime? | 20990 is NOT a Partition prime |
| Is 20990 a Pell Prime? | 20990 is NOT a Pell prime |
| Prime Factors | Prime factors of 20990 |
Sponsored
20990 in other Numerals
| 20990 in Roman Numeral | XXCMXC |
| 20990 in Chinese Numeral | 貳萬玖佰玖拾 |
| 20990 in Egyptian Numeral | 𓂮𓍪𓎎 |
| 20990 in Babylonian Numeral |    |
Roots and stuff for 20990
| Is 20990 a square number? | 20990 is NOT a square number |
| Is 20990 a cube number? | 20990 is NOT a cube number |
| Square root of the number 20990 | 144.87926007542 |
| Cube root of the number 20990 | 27.584861823785 |
Recreational math for 20990
| Number 20990 reversed | 09902 |
| Sum of the digits | 20 |
| No of digits | 5 |