81842611803920

Names of 81842611803920

• Cardinal: 81842611803920 can be written as Eighty-one trillion, eight hundred forty-two billion, six hundred eleven million, eight hundred three thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 8.184261180392 × 10¹³

Factors of 81842611803920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 272

Divisors of 81842611803920

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 40 44 55 61 80 88 110 121 122 176 193 220 242 244 305 386 440 484 488 605 610 671 772 880 965 968 976 1210 1220 1342 1544 1930 1936 2123 2420 2440 2684 3088 3355 3721 3860 4246 4840 4880 5368 6710 7381 7442 7720 8492 9680 10615 10736 11773 13420 14762 14884 15440 16984 18605 21230 23353 23546 26840 29524 29768 33968 36905 37210 37249 40931 42460 46706 47092 53680 58865 59048 59536 73810 74420 74498 81862 84920 93412 94184 116765 117730 118096 129503 147620 148840 148996 163724 169840 186245 186824 188368 204655 226981 233530 235460 259006 295240 297680 297992 327448 372490 373648 409310 409739 450241 453962 467060 470920 518012 590480 595984 647515 654896 718153 744980 818620 819478 900482 907924 934120 941840 1036024 1134905 1295030 1424533 1436306 1489960 1637240 1638956 1800964 1815848 1868240 2048695 2072048 2251205 2269810 2272189 2496791 2590060 2849066 2872612 2979920 3274480 3277912 3590765 3601928 3631696 4097390 4502410 4507129 4539620 4544378 4993582 5180120 5698132 5745224 6555824 7122665 7181530 7203856 7899683 8194780 9004820 9014258 9079240 9088756 9987164 10360240 11360945 11396264 11490448 12483955 14245330 14363060 15799366 16389560 18009640 18028516 18158480 18177512 19974328 22535645 22721890 22792528 24967910 24994079 27464701 28490660 28726120 31598732 32779120 36019280 36057032 36355024 39498415 39948656 43807333 45071290 45443780 49935820 49988158 54929402 56981320 57452240 63197464 72114064 78996830 86896513 87614666 90142580 90887560 99871640 99976316 109858804 113962640 124970395 126394928 137323505 138603529 157993660 173793026 175229332 180285160 181775120 199743280 199952632 219036665 219717608 249940790 274647010 274934869 277207058 315987320 347586052 350458664 360570320 399905264 434482565 438073330 439435216 481880663 499881580 549294020 549869738 554414116 631974640 693017645 695172104 700917328 868965130 876146660 963761326 999763160 1098588040 1099739476 1108828232 1374674345 1386035290 1390344208 1524638819 1737930260 1752293320 1927522652 1999526320 2197176080 2199478952 2217656464 2409403315 2749348690 2772070580 3049277638 3475860520 3504586640 3855045304 4398957904 4818806630 5300687293 5498697380 5544141160 6098555276 6951721040 7623194095 7710090608 8454815269 9637613260 10601374586 10997394760 11088282320 12197110552 15246388190 16771027009 16909630538 19275226520 21202749172 21994789520 24394221104 26503436465 30492776380 33542054018 33819261076 38550453040 42274076345 42405498344 53006872930 60985552760 67084108036 67638522152 83855135045 84548152690 84810996688 93002967959 106013745860 121971105520 134168216072 135277044304 167710270090 169096305380 186005935918 212027491720 268336432144 335420540180 338192610760 372011871836 424054983440 465014839795 670841080360 676385221520 744023743672 930029679590 1023032647549 1341682160720 1488047487344 1860059359180 2046065295098 3720118718360 4092130590196 5115163237745 7440237436720 8184261180392 10230326475490 16368522360784 20460652950980 40921305901960 81842611803920
• Sum of all divisors σ(n): 213748601229576
• Sum of proper divisors (its aliquot sum) s(n): 131905989425656
• 81842611803920 is an abundant number, because the sum of its proper divisors (131905989425656) is greater than itself. Its abundance is 50063377621736

Bases of 81842611803920

• Binary: 10010100110111101110111110011011101011100010000₂
• Hexadecimal: 0x4A6F77CDD710
• Base-36: T0DZ5YCY8

Squares and roots of 81842611803920

• 81842611803920 squared (81842611803920²) is 6698213106887145316527366400
• 81842611803920 cubed (81842611803920³) is 548199255086893535929734981992350796288000
• The square root of 81842611803920 is 9046690.6548151629
• The cube root of 81842611803920 is 43417.0015227307

Scales and comparisons

• 81,842,611,803,920 seconds is equal to 2,602,341 years, 46 weeks, 5 days, 10 hours, 25 minutes, 20 seconds.
• To count from 1 to 81,842,611,803,920 would take you about six million, five hundred five thousand, eight hundred fifty-four 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 81842611803920 cubic inches would be around 3618.1 feet tall.

Recreational maths with 81842611803920

• 81842611803920 backwards is 02930811624818
• The number of decimal digits it has is: 14
• The sum of 81842611803920's digits is 53
• More coming soon!