642849172535636550

Names of 642849172535636550

• Cardinal: 642849172535636550 can be written as Six hundred forty-two quadrillion, eight hundred forty-nine trillion, one hundred seventy-two billion, five hundred thirty-five million, six hundred thirty-six thousand, five hundred fifty.

Scientific notation

• Scientific notation: 6.4284917253563655 × 10¹⁷

Factors of 642849172535636550

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 144353

Divisors of 642849172535636550

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 3 5 6 9 10 11 15 18 22 25 30 33 45 50 55 66 75 79 90 99 110 150 158 165 198 225 237 275 330 395 450 474 495 550 711 790 825 869 990 1185 1422 1650 1738 1975 2370 2475 2607 3555 3950 4345 4950 5214 5925 6241 7110 7821 8690 11850 12482 13035 15642 17775 18723 21725 26070 31205 35550 37446 39105 43450 56169 62410 65175 68651 78210 93615 112338 130350 137302 144253 156025 187230 195525 205953 280845 288506 312050 343255 391050 411906 432759 468075 561690 617859 686510 721265 865518 936150 1029765 1235718 1298277 1404225 1442530 1586783 1716275 2059530 2163795 2596554 2808450 3089295 3173566 3432550 3606325 4327590 4760349 5148825 6178590 6491385 7212650 7933915 9520698 10297650 10818975 11395987 12982770 14281047 15446475 15867830 21637950 22791974 23801745 28562094 30892950 32456925 34187961 39669575 47603490 56979935 64913850 68375922 71405235 79339150 102563883 113959870 119008725 125355857 142810470 170939805 205127766 238017450 250711714 284899675 341879610 357026175 376067571 512819415 569799350 626779285 714052350 752135142 854699025 900282973 1025638830 1128202713 1253558570 1709398050 1800565946 1880337855 2256405426 2564097075 2700848919 3133896425 3760675710 4501414865 5128194150 5401697838 5641013565 6267792850 8102546757 9002829730 9401689275 9903112703 11282027130 13504244595 16205093514 18803378550 19806225406 20808928009 22507074325 27008489190 28205067825 29709338109 40512733785 41617856018 45014148650 49515563515 56410135650 59418676218 62426784027 67521222975 81025467570 89128014327 99031127030 104044640045 124853568054 135042445950 148546690545 178256028654 187280352081 202563668925 208089280090 228898208099 247577817575 297093381090 312133920135 374560704162 405127337850 445640071635 457796416198 495155635150 520223200225 624267840270 686694624297 742733452725 891280143270 936401760405 1040446400450 1144491040495 1373389248594 1485466905450 1560669600675 1643905312711 1872803520810 2060083872891 2228200358175 2288982080990 3121339201350 3287810625422 3433473121485 4120167745782 4456400716350 4682008802025 4931715938133 5722455202475 6866946242970 8219526563555 9364017604050 9863431876266 10300419364455 11444910404950 14795147814399 16439053127110 17167365607425 18082958439821 20600838728910 24658579690665 29590295628798 34334731214850 36165916879642 41097632817775 49317159381330 51502096822275 54248875319463 73975739071995 82195265635550 90414792199105 103004193644550 108497750638926 123292898453325 129868519704169 147951478143990 162746625958389 180829584398210 246585796906650 259737039408338 271244376597315 325493251916778 369878695359975 389605559112507 452073960995525 542488753194630 649342598520845 739757390719950 779211118225014 813733129791945 904147921991050 1168816677337521 1298685197041690 1356221882986575 1428553716745859 1627466259583890 1948027795562535 2337633354675042 2712443765973150 2857107433491718 3246712992604225 3896055591125070 4068665648959725 4285661150237577 5844083386687605 6493425985208450 7142768583729295 8137331297919450 8571322300475154 9740138977812675 11688166773375210 12856983450712731 14285537167458590 19480277955625350 21428305751187885 25713966901425462 29220416933438025 35713842918646475 42856611502375770 58440833866876050 64284917253563655 71427685837292950 107141528755939425 128569834507127310 214283057511878850 321424586267818275 642849172535636550
• Sum of all divisors σ(n): 1908297386895328884
• Sum of proper divisors (its aliquot sum) s(n): 1265448214359692334
• 642849172535636550 is an abundant number, because the sum of its proper divisors (1265448214359692334) is greater than itself. Its abundance is 622599041824055784

Bases of 642849172535636550

• Binary: 100011101011110110111110101010011101001000111111001001000110₂
• Hexadecimal: 0x8EBDBEA9D23F246
• Base-36: 4VTR0GWTY05I

Squares and roots of 642849172535636550

• 642849172535636550 squared (642849172535636550²) is 413255058629752609607779713695902500
• 642849172535636550 cubed (642849172535636550³) is 265660672486302433525688848871615960921790964236375000
• The square root of 642849172535636550 is 801778755.3531438825
• The cube root of 642849172535636550 is 863050.8071864511

Scales and comparisons

• 642,849,172,535,636,550 seconds is equal to 20,440,615,223 years, 30 weeks, 2 days, 16 hours, 22 minutes, 30 seconds.
• To count from 1 to 642,849,172,535,636,550 would take you about sixty-one billion, three hundred twenty-one million, eight hundred forty-five thousand, six hundred seventy years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 642849172535636550 cubic inches would be around 71920.9 feet tall.

Recreational maths with 642849172535636550

• 642849172535636550 backwards is 055636535271948246
• The number of decimal digits it has is: 18
• The sum of 642849172535636550's digits is 81
• More coming soon!