Для перевода 3-ого числа 2222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222220020001 в десятичное необходимо записать его в виде многочлена, состоящего из произведений цифр вида:
A3 = an-1 ∙ 3n-1 + an-2 ∙ 3n-2 + ∙∙∙ + a0 ∙ 30
В результате преобразований получим:
22222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222200200013=2 ∙ 399 + 2 ∙ 398 + 2 ∙ 397 + 2 ∙ 396 + 2 ∙ 395 + 2 ∙ 394 + 2 ∙ 393 + 2 ∙ 392 + 2 ∙ 391 + 2 ∙ 390 + 2 ∙ 389 + 2 ∙ 388 + 2 ∙ 387 + 2 ∙ 386 + 2 ∙ 385 + 2 ∙ 384 + 2 ∙ 383 + 2 ∙ 382 + 2 ∙ 381 + 2 ∙ 380 + 2 ∙ 379 + 2 ∙ 378 + 2 ∙ 377 + 2 ∙ 376 + 2 ∙ 375 + 2 ∙ 374 + 2 ∙ 373 + 2 ∙ 372 + 2 ∙ 371 + 2 ∙ 370 + 2 ∙ 369 + 2 ∙ 368 + 2 ∙ 367 + 2 ∙ 366 + 2 ∙ 365 + 2 ∙ 364 + 2 ∙ 363 + 2 ∙ 362 + 2 ∙ 361 + 2 ∙ 360 + 2 ∙ 359 + 2 ∙ 358 + 2 ∙ 357 + 2 ∙ 356 + 2 ∙ 355 + 2 ∙ 354 + 2 ∙ 353 + 2 ∙ 352 + 2 ∙ 351 + 2 ∙ 350 + 2 ∙ 349 + 2 ∙ 348 + 2 ∙ 347 + 2 ∙ 346 + 2 ∙ 345 + 2 ∙ 344 + 2 ∙ 343 + 2 ∙ 342 + 2 ∙ 341 + 2 ∙ 340 + 2 ∙ 339 + 2 ∙ 338 + 2 ∙ 337 + 2 ∙ 336 + 2 ∙ 335 + 2 ∙ 334 + 2 ∙ 333 + 2 ∙ 332 + 2 ∙ 331 + 2 ∙ 330 + 2 ∙ 329 + 2 ∙ 328 + 2 ∙ 327 + 2 ∙ 326 + 2 ∙ 325 + 2 ∙ 324 + 2 ∙ 323 + 2 ∙ 322 + 2 ∙ 321 + 2 ∙ 320 + 2 ∙ 319 + 2 ∙ 318 + 2 ∙ 317 + 2 ∙ 316 + 2 ∙ 315 + 2 ∙ 314 + 2 ∙ 313 + 2 ∙ 312 + 2 ∙ 311 + 2 ∙ 310 + 2 ∙ 39 + 2 ∙ 38 + 2 ∙ 37 + 0 ∙ 36 + 0 ∙ 35 + 2 ∙ 34 + 0 ∙ 33 + 0 ∙ 32 + 0 ∙ 31 + 1 ∙ 30 = 2 ∙ 1.7179250691067E+47 + 2 ∙ 5.7264168970223E+46 + 2 ∙ 1.9088056323408E+46 + 2 ∙ 6.3626854411359E+45 + 2 ∙ 2.1208951470453E+45 + 2 ∙ 7.069650490151E+44 + 2 ∙ 2.3565501633837E+44 + 2 ∙ 7.8551672112789E+43 + 2 ∙ 2.6183890704263E+43 + 2 ∙ 8.7279635680877E+42 + 2 ∙ 2.9093211893626E+42 + 2 ∙ 9.6977372978752E+41 + 2 ∙ 3.2325790992917E+41 + 2 ∙ 1.0775263664306E+41 + 2 ∙ 3.5917545547686E+40 + 2 ∙ 1.1972515182562E+40 + 2 ∙ 3.9908383941873E+39 + 2 ∙ 1.3302794647291E+39 + 2 ∙ 4.4342648824304E+38 + 2 ∙ 1.4780882941435E+38 + 2 ∙ 4.9269609804782E+37 + 2 ∙ 1.6423203268261E+37 + 2 ∙ 5.4744010894202E+36 + 2 ∙ 1.8248003631401E+36 + 2 ∙ 6.0826678771336E+35 + 2 ∙ 2.0275559590445E+35 + 2 ∙ 6.7585198634818E+34 + 2 ∙ 2.2528399544939E+34 + 2 ∙ 7.5094665149797E+33 + 2 ∙ 2.5031555049932E+33 + 2 ∙ 8.3438516833108E+32 + 2 ∙ 2.7812838944369E+32 + 2 ∙ 9.2709463147898E+31 + 2 ∙ 3.0903154382633E+31 + 2 ∙ 1.0301051460878E+31 + 2 ∙ 3.4336838202925E+30 + 2 ∙ 1.1445612734308E+30 + 2 ∙ 3.8152042447695E+29 + 2 ∙ 1.2717347482565E+29 + 2 ∙ 4.2391158275216E+28 + 2 ∙ 1.4130386091739E+28 + 2 ∙ 4.7101286972462E+27 + 2 ∙ 1.5700428990821E+27 + 2 ∙ 5.2334763302736E+26 + 2 ∙ 1.7444921100912E+26 + 2 ∙ 5.814973700304E+25 + 2 ∙ 1.938324566768E+25 + 2 ∙ 6.4610818892267E+24 + 2 ∙ 2.1536939630756E+24 + 2 ∙ 7.1789798769185E+23 + 2 ∙ 2.3929932923062E+23 + 2 ∙ 7.9766443076873E+22 + 2 ∙ 2.6588814358958E+22 + 2 ∙ 8.8629381196525E+21 + 2 ∙ 2.9543127065508E+21 + 2 ∙ 9.8477090218361E+20 + 2 ∙ 3.2825696739454E+20 + 2 ∙ 1.0941898913151E+20 + 2 ∙ 3.6472996377171E+19 + 2 ∙ 1.2157665459057E+19 + 2 ∙ 4052555153018976267 + 2 ∙ 1350851717672992089 + 2 ∙ 450283905890997363 + 2 ∙ 150094635296999121 + 2 ∙ 50031545098999707 + 2 ∙ 16677181699666569 + 2 ∙ 5559060566555523 + 2 ∙ 1853020188851841 + 2 ∙ 617673396283947 + 2 ∙ 205891132094649 + 2 ∙ 68630377364883 + 2 ∙ 22876792454961 + 2 ∙ 7625597484987 + 2 ∙ 2541865828329 + 2 ∙ 847288609443 + 2 ∙ 282429536481 + 2 ∙ 94143178827 + 2 ∙ 31381059609 + 2 ∙ 10460353203 + 2 ∙ 3486784401 + 2 ∙ 1162261467 + 2 ∙ 387420489 + 2 ∙ 129140163 + 2 ∙ 43046721 + 2 ∙ 14348907 + 2 ∙ 4782969 + 2 ∙ 1594323 + 2 ∙ 531441 + 2 ∙ 177147 + 2 ∙ 59049 + 2 ∙ 19683 + 2 ∙ 6561 + 2 ∙ 2187 + 0 ∙ 729 + 0 ∙ 243 + 2 ∙ 81 + 0 ∙ 27 + 0 ∙ 9 + 0 ∙ 3 + 1 ∙ 1 = 3.4358501382134E+47 + 1.1452833794045E+47 + 3.8176112646816E+46 + 1.2725370882272E+46 + 4.2417902940906E+45 + 1.4139300980302E+45 + 4.7131003267674E+44 + 1.5710334422558E+44 + 5.2367781408526E+43 + 1.7455927136175E+43 + 5.8186423787251E+42 + 1.939547459575E+42 + 6.4651581985835E+41 + 2.1550527328612E+41 + 7.1835091095372E+40 + 2.3945030365124E+40 + 7.9816767883747E+39 + 2.6605589294582E+39 + 8.8685297648608E+38 + 2.9561765882869E+38 + 9.8539219609564E+37 + 3.2846406536521E+37 + 1.094880217884E+37 + 3.6496007262801E+36 + 1.2165335754267E+36 + 4.0551119180891E+35 + 1.3517039726964E+35 + 4.5056799089878E+34 + 1.5018933029959E+34 + 5.0063110099865E+33 + 1.6687703366622E+33 + 5.5625677888739E+32 + 1.854189262958E+32 + 6.1806308765265E+31 + 2.0602102921755E+31 + 6.867367640585E+30 + 2.2891225468617E+30 + 7.6304084895389E+29 + 2.543469496513E+29 + 8.4782316550432E+28 + 2.8260772183477E+28 + 9.4202573944925E+27 + 3.1400857981642E+27 + 1.0466952660547E+27 + 3.4889842201824E+26 + 1.1629947400608E+26 + 3.876649133536E+25 + 1.2922163778453E+25 + 4.3073879261511E+24 + 1.4357959753837E+24 + 4.7859865846124E+23 + 1.5953288615375E+23 + 5.3177628717915E+22 + 1.7725876239305E+22 + 5.9086254131017E+21 + 1.9695418043672E+21 + 6.5651393478907E+20 + 2.1883797826302E+20 + 7.2945992754342E+19 + 2.4315330918114E+19 + 8105110306037952534 + 2701703435345984178 + 900567811781994726 + 300189270593998242 + 100063090197999414 + 33354363399333138 + 11118121133111046 + 3706040377703682 + 1235346792567894 + 411782264189298 + 137260754729766 + 45753584909922 + 15251194969974 + 5083731656658 + 1694577218886 + 564859072962 + 188286357654 + 62762119218 + 20920706406 + 6973568802 + 2324522934 + 774840978 + 258280326 + 86093442 + 28697814 + 9565938 + 3188646 + 1062882 + 354294 + 118098 + 39366 + 13122 + 4374 + 0 + 0 + 162 + 0 + 0 + 0 + 1 = 5.1537752073201E+4710
Таким образом:
22222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222200200013 = 5.1537752073201E+4710.
