Names of 20808
| Nominal | 20808 |
| Cardinal | twenty thousand eight hundred eight |
| Ordinal | 20,808th |
| This number as US currency | twenty thousand eight hundred eight dollars |
| Is 20808 an odd number? | 20808 is NOT an odd number |
| Is 20808 an even number? | 20808 is an even number |
| Is 20808 a palindrome? | 20808 is NOT a palindrome number |
| Is 20808 a triangle number? | 20808 is NOT a triangle number |
20808 in other Bases
| Base 2 (Binary) | 1010001010010002 |
| Base 3 (Ternary) | 10011122003 |
| Base 4 (Quaternary) | 110110204 |
| Base 5 (Quinary) | 11312135 |
| Base 6 (Senary) | 2402006 |
| Base 8 (Octal) | 505108 |
| Base 12 (Duodecimal) | 1006012 |
| Base 16 (Hexadecimal) | 514816 |
| Base 20 (Vigesimal) | 2C0820 |
Primes and Factors tests for 20808
| Is 20808 a Prime Number? | 20808 is NOT a prime |
| Is 20808 a perfect number? | 20808 is NOT a perfect number |
| Is 20808 a Mersenne Prime? | 20808 is NOT a Mersenne prime |
| Is 20808 a Fermat Prime? | 20808 is NOT a Fermat prime |
| Is 20808 a Fibonacci Prime? | 20808 is NOT a Fibonacci prime |
| Is 20808 a Partition Prime? | 20808 is NOT a Partition prime |
| Is 20808 a Pell Prime? | 20808 is NOT a Pell prime |
| Prime Factors | Prime factors of 20808 |
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20808 in other Numerals
| 20808 in Roman Numeral | XXDCCCVIII |
| 20808 in Chinese Numeral | 貳萬捌佰捌 |
| 20808 in Egyptian Numeral | 𓂮𓍩𓐁 |
| 20808 in Babylonian Numeral |    |
Roots and stuff for 20808
| Is 20808 a square number? | 20808 is NOT a square number |
| Is 20808 a cube number? | 20808 is NOT a cube number |
| Square root of the number 20808 | 144.24978336206 |
| Cube root of the number 20808 | 27.504902707159 |
Recreational math for 20808
| Number 20808 reversed | 80802 |
| Sum of the digits | 18 |
| No of digits | 5 |