8013865398640

Names of 8013865398640

• Cardinal: 8013865398640 can be written as Eight trillion, thirteen billion, eight hundred sixty-five million, three hundred ninety-eight thousand, six hundred forty.

Scientific notation

• Scientific notation: 8.01386539864 × 10¹²

Factors of 8013865398640

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 6862

Divisors of 8013865398640

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 4 5 8 10 16 20 29 37 40 58 74 79 80 116 145 148 158 181 185 232 290 296 316 362 370 395 464 580 592 632 724 740 790 905 1073 1160 1264 1448 1480 1580 1810 2146 2291 2320 2896 2923 2960 3160 3620 4292 4582 5249 5365 5846 6320 6529 6697 7240 8584 9164 10498 10730 11455 11692 13058 13394 14299 14480 14615 17168 18328 20996 21460 22910 23384 26116 26245 26788 28598 29230 32645 33485 36656 41992 42920 45820 46768 52232 52490 53576 57196 58460 65290 66970 71495 83984 84767 85840 91640 104464 104980 107152 114392 116920 130580 133940 142990 169534 183280 189341 194213 209960 228784 233840 241573 261160 267880 285980 339068 378682 388426 414671 419920 423835 483146 515791 522320 529063 535760 571960 678136 757364 776852 829342 847670 946705 966292 971065 1031582 1058126 1143920 1181749 1207865 1356272 1514728 1553704 1658684 1695340 1893410 1932584 1942130 2063164 2073355 2116252 2363498 2415730 2578955 2645315 3029456 3107408 3317368 3390680 3786820 3865168 3884260 4126328 4146710 4232504 4726996 4831460 5157910 5290630 5908745 6634736 6781360 7005617 7573640 7768520 8252656 8293420 8465008 9453992 9662920 10315820 10581260 11817490 14011234 14957939 15147280 15342827 15537040 16586840 18907984 19084267 19325840 20631640 21162520 23634980 28022468 29915878 30685654 33173680 34270721 35028085 38168534 41263280 42325040 43724713 47269960 56044936 59831756 61371308 68541442 70056170 74789695 76337068 76714135 87449426 93358171 94539920 95421335 112089872 119663512 122742616 137082884 140112340 149579390 152674136 153428270 171353605 174898852 186716342 190842670 218623565 239327024 245485232 274165768 280224680 299158780 305348272 306856540 342707210 349797704 373432684 381685340 437247130 466790855 548331536 553443743 560449360 598317560 613713080 685414420 699595408 746865368 763370680 874494260 933581710 1106887486 1196635120 1227426160 1268016677 1370828840 1493730736 1526741360 1748988520 1867163420 2213774972 2536033354 2707386959 2741657680 2767218715 3454252327 3497977040 3734326840 4427549944 5072066708 5414773918 5534437430 6340083385 6908504654 7468653680 8855099888 10144133416 10829547836 11068874860 12680166770 13536934795 13817009308 17271261635 20288266832 21659095672 22137749720 25360333540 27073869590 27634018616 34542523270 43318191344 44275499440 50720667080 54147739180 55268037232 69085046540 100173317483 101441334160 108295478360 138170093080 200346634966 216590956720 276340186160 400693269932 500866587415 801386539864 1001733174830 1602773079728 2003466349660 4006932699320 8013865398640
• Sum of all divisors σ(n): 20160084672000
• Sum of proper divisors (its aliquot sum) s(n): 12146219273360
• 8013865398640 is an abundant number, because the sum of its proper divisors (12146219273360) is greater than itself. Its abundance is 4132353874720

Bases of 8013865398640

• Binary: 1110100100111011111100110011011000101110000₂
• Hexadecimal: 0x749DF99B170
• Base-36: 2U9IOJO8G

Squares and roots of 8013865398640

• 8013865398640 squared (8013865398640²) is 64222038627519446113849600
• 8013865398640 cubed (8013865398640³) is 514666773187199604505517323529004544000
• The square root of 8013865398640 is 2830877.1429788329
• The cube root of 8013865398640 is 20011.5478299645

Scales and comparisons

• 8,013,865,398,640 seconds is equal to 254,816 years, 6 weeks, 5 days, 17 hours, 50 minutes, 40 seconds.
• To count from 1 to 8,013,865,398,640 would take you about six hundred thirty-seven thousand and forty 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 8013865398640 cubic inches would be around 1667.6 feet tall.

Recreational maths with 8013865398640

• 8013865398640 backwards is 0468935683108
• The number of decimal digits it has is: 13
• The sum of 8013865398640's digits is 61
• More coming soon!