Для перевода шестнадцатеричного числа 101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f3031323334353637 в десятичное необходимо записать его в виде многочлена, состоящего из произведений цифр вида:
A16 = an-1 ∙ 16n-1 + an-2 ∙ 16n-2 + ∙∙∙ + a0 ∙ 160
В результате преобразований получим:
101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363716=1 ∙ 1679 + 0 ∙ 1678 + 1 ∙ 1677 + 1 ∙ 1676 + 1 ∙ 1675 + 2 ∙ 1674 + 1 ∙ 1673 + 3 ∙ 1672 + 1 ∙ 1671 + 4 ∙ 1670 + 1 ∙ 1669 + 5 ∙ 1668 + 1 ∙ 1667 + 6 ∙ 1666 + 1 ∙ 1665 + 7 ∙ 1664 + 1 ∙ 1663 + 8 ∙ 1662 + 1 ∙ 1661 + 9 ∙ 1660 + 1 ∙ 1659 + a ∙ 1658 + 1 ∙ 1657 + b ∙ 1656 + 1 ∙ 1655 + c ∙ 1654 + 1 ∙ 1653 + d ∙ 1652 + 1 ∙ 1651 + e ∙ 1650 + 1 ∙ 1649 + f ∙ 1648 + 2 ∙ 1647 + 0 ∙ 1646 + 2 ∙ 1645 + 1 ∙ 1644 + 2 ∙ 1643 + 2 ∙ 1642 + 2 ∙ 1641 + 3 ∙ 1640 + 2 ∙ 1639 + 4 ∙ 1638 + 2 ∙ 1637 + 5 ∙ 1636 + 2 ∙ 1635 + 6 ∙ 1634 + 2 ∙ 1633 + 7 ∙ 1632 + 2 ∙ 1631 + 8 ∙ 1630 + 2 ∙ 1629 + 9 ∙ 1628 + 2 ∙ 1627 + a ∙ 1626 + 2 ∙ 1625 + b ∙ 1624 + 2 ∙ 1623 + c ∙ 1622 + 2 ∙ 1621 + d ∙ 1620 + 2 ∙ 1619 + e ∙ 1618 + 2 ∙ 1617 + f ∙ 1616 + 3 ∙ 1615 + 0 ∙ 1614 + 3 ∙ 1613 + 1 ∙ 1612 + 3 ∙ 1611 + 2 ∙ 1610 + 3 ∙ 169 + 3 ∙ 168 + 3 ∙ 167 + 4 ∙ 166 + 3 ∙ 165 + 5 ∙ 164 + 3 ∙ 163 + 6 ∙ 162 + 3 ∙ 161 + 7 ∙ 160 = 1 ∙ 1.3349918974506E+95 + 0 ∙ 8.3436993590661E+93 + 1 ∙ 5.2148120994163E+92 + 1 ∙ 3.2592575621352E+91 + 1 ∙ 2.0370359763345E+90 + 2 ∙ 1.2731474852091E+89 + 1 ∙ 7.9571717825566E+87 + 3 ∙ 4.9732323640979E+86 + 1 ∙ 3.1082702275612E+85 + 4 ∙ 1.9426688922257E+84 + 1 ∙ 1.2141680576411E+83 + 5 ∙ 7.5885503602568E+81 + 1 ∙ 4.7428439751605E+80 + 6 ∙ 2.9642774844753E+79 + 1 ∙ 1.8526734277971E+78 + 7 ∙ 1.1579208923732E+77 + 1 ∙ 7.2370055773323E+75 + 8 ∙ 4.5231284858327E+74 + 1 ∙ 2.8269553036454E+73 + 9 ∙ 1.7668470647784E+72 + 1 ∙ 1.1042794154865E+71 + 10 ∙ 6.9017463467906E+69 + 1 ∙ 4.3135914667441E+68 + 11 ∙ 2.6959946667151E+67 + 1 ∙ 1.6849966666969E+66 + 12 ∙ 1.0531229166856E+65 + 1 ∙ 6.5820182292848E+63 + 13 ∙ 4.113761393303E+62 + 1 ∙ 2.5711008708144E+61 + 14 ∙ 1.606938044259E+60 + 1 ∙ 1.0043362776619E+59 + 15 ∙ 6.2771017353867E+57 + 2 ∙ 3.9231885846167E+56 + 0 ∙ 2.4519928653854E+55 + 2 ∙ 1.5324955408659E+54 + 1 ∙ 9.5780971304118E+52 + 2 ∙ 5.9863107065074E+51 + 2 ∙ 3.7414441915671E+50 + 2 ∙ 2.3384026197294E+49 + 3 ∙ 1.4615016373309E+48 + 2 ∙ 9.1343852333181E+46 + 4 ∙ 5.7089907708238E+45 + 2 ∙ 3.5681192317649E+44 + 5 ∙ 2.2300745198531E+43 + 2 ∙ 1.3937965749082E+42 + 6 ∙ 8.711228593176E+40 + 2 ∙ 5.444517870735E+39 + 7 ∙ 3.4028236692094E+38 + 2 ∙ 2.1267647932559E+37 + 8 ∙ 1.3292279957849E+36 + 2 ∙ 8.3076749736557E+34 + 9 ∙ 5.1922968585348E+33 + 2 ∙ 3.2451855365843E+32 + 10 ∙ 2.0282409603652E+31 + 2 ∙ 1.2676506002282E+30 + 11 ∙ 7.9228162514264E+28 + 2 ∙ 4.9517601571415E+27 + 12 ∙ 3.0948500982135E+26 + 2 ∙ 1.9342813113834E+25 + 13 ∙ 1.2089258196146E+24 + 2 ∙ 7.5557863725914E+22 + 14 ∙ 4.7223664828696E+21 + 2 ∙ 2.9514790517935E+20 + 15 ∙ 1.844674407371E+19 + 3 ∙ 1152921504606846976 + 0 ∙ 72057594037927936 + 3 ∙ 4503599627370496 + 1 ∙ 281474976710656 + 3 ∙ 17592186044416 + 2 ∙ 1099511627776 + 3 ∙ 68719476736 + 3 ∙ 4294967296 + 3 ∙ 268435456 + 4 ∙ 16777216 + 3 ∙ 1048576 + 5 ∙ 65536 + 3 ∙ 4096 + 6 ∙ 256 + 3 ∙ 16 + 7 ∙ 1 = 1.3349918974506E+95 + 0 + 5.2148120994163E+92 + 3.2592575621352E+91 + 2.0370359763345E+90 + 2.5462949704181E+89 + 7.9571717825566E+87 + 1.4919697092294E+87 + 3.1082702275612E+85 + 7.7706755689029E+84 + 1.2141680576411E+83 + 3.7942751801284E+82 + 4.7428439751605E+80 + 1.7785664906852E+80 + 1.8526734277971E+78 + 8.1054462466121E+77 + 7.2370055773323E+75 + 3.6185027886661E+75 + 2.8269553036454E+73 + 1.5901623583005E+73 + 1.1042794154865E+71 + 6.9017463467906E+70 + 4.3135914667441E+68 + 2.9655941333866E+68 + 1.6849966666969E+66 + 1.2637475000227E+66 + 6.5820182292848E+63 + 5.3478898112939E+63 + 2.5711008708144E+61 + 2.2497132619626E+61 + 1.0043362776619E+59 + 9.41565260308E+58 + 7.8463771692334E+56 + 0 + 3.0649910817318E+54 + 9.5780971304118E+52 + 1.1972621413015E+52 + 7.4828883831342E+50 + 4.6768052394589E+49 + 4.3845049119927E+48 + 1.8268770466636E+47 + 2.2835963083295E+46 + 7.1362384635298E+44 + 1.1150372599265E+44 + 2.7875931498163E+42 + 5.2267371559056E+41 + 1.088903574147E+40 + 2.3819765684466E+39 + 4.2535295865117E+37 + 1.0633823966279E+37 + 1.6615349947311E+35 + 4.6730671726813E+34 + 6.4903710731685E+32 + 2.0282409603652E+32 + 2.5353012004565E+30 + 8.7150978765691E+29 + 9.903520314283E+27 + 3.7138201178561E+27 + 3.8685626227668E+25 + 1.571603565499E+25 + 1.5111572745183E+23 + 6.6113130760175E+22 + 5.9029581035871E+20 + 2.7670116110564E+20 + 3458764513820540928 + 0 + 13510798882111488 + 281474976710656 + 52776558133248 + 2199023255552 + 206158430208 + 12884901888 + 805306368 + 67108864 + 3145728 + 327680 + 12288 + 1536 + 48 + 7 = 1.3405556468425E+9510
Таким образом:
101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363716 = 1.3405556468425E+9510.
