2004 near solid serial number $20 order bill

Product Name: 2004 near solid serial number $20 order bill
2004 $20 near solid serial. Circulated, but with no rips or tears as can be seen in pictures. What makes this serial number special ? 48444444 contains a 7-of-a-kind. Only 0.00072% of 8-digit numbers have this combination. 48444444 contains a 6-of-a-kind together. Only 0.0028% of 8-digit numbers have order this combination. 48444444 has 2 unique digits. In 0.011% of 8-digit numbers, there are 2 or fewer unique digits. All of the digits in 48444444 are powers of 2. Only 0.070% of 8-digit numbers have this property. All of the digits in 48444444 are even! Only 0.39% of 8-digit numbers have this property.