81839234408400

Names of 81839234408400

• Cardinal: 81839234408400 can be written as Eighty-one trillion, eight hundred thirty-nine billion, two hundred thirty-four million, four hundred eight thousand, four hundred.

Scientific notation

• Scientific notation: 8.18392344084 × 10¹³

Factors of 81839234408400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 4202069

Divisors of 81839234408400

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 25 28 30 35 36 40 42 45 48 50 56 60 63 70 72 75 80 84 90 100 105 112 120 126 140 144 150 168 175 180 200 210 225 240 252 280 300 315 336 350 360 400 420 450 504 525 560 600 630 700 720 773 840 900 1008 1050 1200 1260 1400 1546 1575 1680 1800 2100 2319 2520 2800 3092 3150 3600 3865 4200 4638 5040 5411 6184 6300 6957 7730 8400 9276 10822 11595 12368 12600 13914 15460 16233 18552 19325 21644 23190 25200 27055 27828 30920 32466 34785 37104 38650 43288 46380 48699 54110 55656 57975 61840 64932 69570 77300 81165 86576 92760 97398 108220 111312 115950 129864 135275 139140 154600 162330 173925 185520 194796 216440 231900 243495 259728 270550 278280 309200 324660 347850 389592 405825 432880 463800 486990 541100 556560 649320 695700 779184 811650 927600 973980 1082200 1217475 1298640 1391400 1623300 1947960 2164400 2434950 2782800 3246600 3895920 4201279 4869900 6493200 8402558 9739800 12603837 16805116 19479600 21006395 25207674 29408953 33610232 37811511 42012790 50415348 58817906 63019185 67220464 75623022 84025580 88226859 100830696 105031975 117635812 126038370 147044765 151246044 168051160 176453718 189057555 201661392 210063950 235271624 252076740 264680577 294089530 302492088 315095925 336102320 352907436 378115110 420127900 441134295 470543248 504153480 529361154 588179060 604984176 630191850 705814872 735223825 756230220 840255800 882268590 945287775 1008306960 1058722308 1176358120 1260383700 1323402885 1411629744 1470447650 1512460440 1680511600 1764537180 1890575550 2117444616 2205671475 2352716240 2520767400 2646805770 2940895300 3024920880 3247588667 3529074360 3781151100 4234889232 4411342950 5041534800 5293611540 5881790600 6495177334 6617014425 7058148720 7562302200 8822685900 9742766001 10587223080 11763581200 12990354668 13234028850 15124604400 16237943335 17645371800 19485532002 21174446160 22733120669 25980709336 26468057700 29228298003 32475886670 35290743600 38971064004 45466241338 48713830005 51961418672 52936115400 58456596006 64951773340 68199362007 77942128008 81189716675 90932482676 97427660010 105872230800 113665603345 116913192012 129903546680 136398724014 146141490015 155884256016 162379433350 181864965352 194855320020 204598086021 227331206690 233826384024 243569150025 259807093360 272797448028 292282980030 324758866700 340996810035 363729930704 389710640040 409196172042 454662413380 467652768048 487138300050 545594896056 568328016725 584565960060 649517733400 681993620070 730707450075 779421280080 818392344084 909324826760 974276600100 1022990430105 1091189792112 1136656033450 1169131920120 1299035466800 1363987240140 1461414900150 1636784688168 1704984050175 1818649653520 1948553200200 2045980860210 2273312066900 2338263840240 2727974480280 2922829800300 3273569376336 3409968100350 3897106400400 4091961720420 4546624133800 5114952150525 5455948960560 5845659600600 6819936200700 8183923440840 9093248267600 10229904301050 11691319201200 13639872401400 16367846881680 20459808602100 27279744802800 40919617204200 81839234408400
• Sum of all divisors σ(n): 324996971719680
• Sum of proper divisors (its aliquot sum) s(n): 243157737311280
• 81839234408400 is an abundant number, because the sum of its proper divisors (243157737311280) is greater than itself. Its abundance is 161318502902880

Bases of 81839234408400

• Binary: 10010100110111010101110011111101101111111010000₂
• Hexadecimal: 0x4A6EAE7EDFD0
• Base-36: T0CFB51W0

Squares and roots of 81839234408400

• 81839234408400 squared (81839234408400²) is 6697660288553042497990560000
• 81839234408400 cubed (81839234408400³) is 548131390342724428250056525810384704000000
• The square root of 81839234408400 is 9046503.9881934501
• The cube root of 81839234408400 is 43416.4042853407

Scales and comparisons

• 81,839,234,408,400 seconds is equal to 2,602,234 years, 26 weeks, 3 days, 5 hours.
• To count from 1 to 81,839,234,408,400 would take you about six million, five hundred five thousand, five hundred eighty-six 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 81839234408400 cubic inches would be around 3618 feet tall.

Recreational maths with 81839234408400

• 81839234408400 backwards is 00480443293818
• The number of decimal digits it has is: 14
• The sum of 81839234408400's digits is 54
• More coming soon!