Names of 20820
| Nominal | 20820 |
| Cardinal | twenty thousand eight hundred twenty |
| Ordinal | 20,820th |
| This number as US currency | twenty thousand eight hundred twenty dollars |
| Is 20820 an odd number? | 20820 is NOT an odd number |
| Is 20820 an even number? | 20820 is an even number |
| Is 20820 a palindrome? | 20820 is NOT a palindrome number |
| Is 20820 a triangle number? | 20820 is NOT a triangle number |
20820 in other Bases
| Base 2 (Binary) | 1010001010101002 |
| Base 3 (Ternary) | 10011200103 |
| Base 4 (Quaternary) | 110111104 |
| Base 5 (Quinary) | 11312405 |
| Base 6 (Senary) | 2402206 |
| Base 8 (Octal) | 505248 |
| Base 12 (Duodecimal) | 1007012 |
| Base 16 (Hexadecimal) | 515416 |
| Base 20 (Vigesimal) | 2C1020 |
Primes and Factors tests for 20820
| Is 20820 a Prime Number? | 20820 is NOT a prime |
| Is 20820 a perfect number? | 20820 is NOT a perfect number |
| Is 20820 a Mersenne Prime? | 20820 is NOT a Mersenne prime |
| Is 20820 a Fermat Prime? | 20820 is NOT a Fermat prime |
| Is 20820 a Fibonacci Prime? | 20820 is NOT a Fibonacci prime |
| Is 20820 a Partition Prime? | 20820 is NOT a Partition prime |
| Is 20820 a Pell Prime? | 20820 is NOT a Pell prime |
| Prime Factors | Prime factors of 20820 |
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20820 in other Numerals
| 20820 in Roman Numeral | XXDCCCXX |
| 20820 in Chinese Numeral | 貳萬捌佰貳拾 |
| 20820 in Egyptian Numeral | 𓂮𓍩𓎇 |
| 20820 in Babylonian Numeral |   |
Roots and stuff for 20820
| Is 20820 a square number? | 20820 is NOT a square number |
| Is 20820 a cube number? | 20820 is NOT a cube number |
| Square root of the number 20820 | 144.29137188342 |
| Cube root of the number 20820 | 27.510189061836 |
Recreational math for 20820
| Number 20820 reversed | 02802 |
| Sum of the digits | 12 |
| No of digits | 5 |