Переведем число 84545741010207611289610 в шестнадцатиричное вот так:
Целая часть числа находится делением на основание новой системы счисления:
845457410102076112896 | 16 | | | | | | | | | | | | | | | | | |
-8.4545741010208E+20 | 52841088131379757056 | 16 | | | | | | | | | | | | | | | | |
F | -5.284108813138E+19 | 3302568008211234816 | 16 | | | | | | | | | | | | | | | |
| F | -3302568008211234816 | 206410500513202176 | 16 | | | | | | | | | | | | | | |
| | 0 | -206410500513202176 | 12900656282075136 | 16 | | | | | | | | | | | | | |
| | | 0 | -12900656282075136 | 806291017629696 | 16 | | | | | | | | | | | | |
| | | | 0 | -806291017629696 | 50393188601856 | 16 | | | | | | | | | | | |
| | | | | 0 | -50393188601856 | 3149574287616 | 16 | | | | | | | | | | |
| | | | | | 0 | -3149574287616 | 196848392976 | 16 | | | | | | | | | |
| | | | | | | 0 | -196848392976 | 12303024561 | 16 | | | | | | | | |
| | | | | | | | 0 | -12303024560 | 768939035 | 16 | | | | | | | |
| | | | | | | | | 1 | -768939024 | 48058689 | 16 | | | | | | |
| | | | | | | | | | B | -48058688 | 3003668 | 16 | | | | | |
| | | | | | | | | | | 1 | -3003664 | 187729 | 16 | | | | |
| | | | | | | | | | | | 4 | -187728 | 11733 | 16 | | | |
| | | | | | | | | | | | | 1 | -11728 | 733 | 16 | | |
| | | | | | | | | | | | | | 5 | -720 | 45 | 16 | |
| | | | | | | | | | | | | | | D | -32 | 2 | |
| | | | | | | | | | | | | | | | D | | |
 |
В результате преобразования получилось:
84545741010207611289610 = 2DD5141B10000000FF16
Окончательный ответ: 84545741010207611289610 = 2DD5141B10000000FF16