81043440896000

Names of 81043440896000

• Cardinal: 81043440896000 can be written as Eighty-one trillion, forty-three billion, four hundred forty million, eight hundred ninety-six thousand.

Scientific notation

• Scientific notation: 8.1043440896 × 10¹³

Factors of 81043440896000

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 1379

Divisors of 81043440896000

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 25 32 40 44 50 55 64 80 88 100 110 113 125 128 160 176 200 220 226 250 256 257 275 320 352 400 440 452 500 512 514 550 565 640 704 800 880 904 991 1000 1024 1028 1100 1130 1243 1280 1285 1375 1408 1600 1760 1808 1982 2000 2048 2056 2200 2260 2486 2560 2570 2750 2816 2825 2827 3200 3520 3616 3964 4000 4112 4400 4520 4955 4972 5120 5140 5500 5632 5650 5654 6215 6400 6425 7040 7232 7928 8000 8224 8800 9040 9910 9944 10240 10280 10901 11000 11264 11300 11308 12430 12800 12850 14080 14125 14135 14464 15856 16000 16448 17600 18080 19820 19888 20560 21802 22000 22528 22600 22616 24775 24860 25600 25700 28160 28250 28270 28928 29041 31075 31712 32000 32125 32896 35200 36160 39640 39776 41120 43604 44000 45200 45232 49550 49720 51200 51400 54505 56320 56500 56540 57856 58082 62150 63424 64000 64250 65792 70400 70675 72320 79280 79552 82240 87208 88000 90400 90464 99100 99440 102800 109010 111983 112640 113000 113080 115712 116164 123875 124300 126848 128000 128500 131584 140800 141350 144640 145205 155375 158560 159104 164480 174416 176000 180800 180928 198200 198880 205600 218020 223966 226000 226160 231424 232328 247750 248600 253696 254687 256000 257000 263168 272525 281600 282700 289280 290410 310750 317120 318208 319451 328960 348832 352000 353375 361600 361856 396400 397760 411200 436040 447932 452000 452320 464656 495500 497200 507392 509374 514000 526336 545050 559915 563200 565400 578560 580820 621500 634240 636416 638902 657920 697664 704000 706750 723200 723712 726025 792800 795520 822400 872080 895864 904000 904640 929312 991000 994400 1014784 1018748 1028000 1090100 1119830 1130800 1157120 1161640 1231813 1243000 1268480 1272832 1273435 1277804 1315840 1362625 1395328 1408000 1413500 1446400 1447424 1452050 1585600 1591040 1597255 1644800 1744160 1791728 1808000 1809280 1858624 1982000 1988800 2029568 2037496 2056000 2180200 2239660 2261600 2323280 2463626 2486000 2536960 2545664 2546870 2555608 2631680 2725250 2790656 2799575 2801557 2816000 2827000 2892800 2894848 2904100 3171200 3182080 3194510 3289600 3488320 3583456 3616000 3618560 3630125 3717248 3964000 3977600 4074992 4112000 4360400 4479320 4523200 4646560 4927252 4972000 5073920 5093740 5111216 5450500 5581312 5599150 5603114 5654000 5785600 5789696 5808200 6159065 6342400 6364160 6367175 6389020 6579200 6976640 7166912 7232000 7237120 7260250 7434496 7928000 7955200 7986275 8149984 8224000 8720800 8958640 9046400 9293120 9854504 9944000 10147840 10187480 10222432 10901000 11162624 11198300 11206228 11308000 11616400 12318130 12684800 12728320 12734350 12778040 13158400 13953280 13997875 14007785 14333824 14464000 14474240 14520500 14868992 15856000 15910400 15972550 16299968 16448000 17441600 17917280 18092800 18586240 19709008 19888000 20374960 20444864 21802000 22325248 22396600 22412456 22616000 23232800 24636260 25369600 25468700 25556080 27906560 27995750 28015570 28667648 28779631 28928000 28948480 29041000 29737984 30795325 31712000 31820800 31835875 31945100 32599936 32896000 34883200 35834560 36185600 37172480 39418016 39776000 39931375 40749920 40889728 43604000 44793200 44824912 45232000 46465600 49272520 50739200 50937400 51112160 55813120 55991500 56031140 57335296 57559262 58082000 59475968 61590650 63424000 63641600 63671750 63890200 65199872 65792000 69766400 70038925 71669120 72371200 74344960 78836032 79552000 79862750 81499840 81779456 87208000 89586400 89649824 90464000 92931200 98545040 101874800 102224320 111626240 111983000 112062280 114670592 115118524 116164000 123181300 126848000 127343500 127780400 130399744 139532800 140077850 143338240 143898155 144742400 148689920 153976625 157672064 159104000 159725500 162999680 163558912 174416000 179172800 179299648 180928000 185862400 197090080 203749600 204448640 223966000 224124560 229341184 230237048 232328000 246362600 253696000 254687000 255560800 260799488 279065600 280155700 286676480 287796310 297379840 307953250 315344128 316575941 318208000 319451000 325999360 327117824 348832000 350194625 358345600 358599296 361856000 371724800 394180160 407499200 408897280 447932000 448249120 460474096 464656000 492725200 509374000 511121600 521598976 558131200 560311400 573352960 575592620 615906500 630688256 633151882 638902000 651998720 654235648 697664000 700389250 716691200 717198592 719490775 723712000 743449600 788360320 814998400 817794560 895864000 896498240 920948192 929312000 985450400 1018748000 1022243200 1120622800 1146705920 1151185240 1231813000 1261376512 1266303764 1277804000 1303997440 1395328000 1400778500 1433382400 1434397184 1438981550 1486899200 1576720640 1582879705 1629996800 1635589120 1791728000 1792996480 1841896384 1858624000 1970900800 2037496000 2044486400 2241245600 2302370480 2463626000 2522753024 2532607528 2555608000 2607994880 2790656000 2801557000 2866764800 2868794368 2877963100 3153441280 3165759410 3259993600 3271178240 3583456000 3585992960 3597453875 3683792768 3717248000 3941801600 4074992000 4088972800 4482491200 4604740960 4927252000 5065215056 5111216000 5603114000 5733529600 5737588736 5755926200 6306882560 6331518820 6519987200 7166912000 7171985920 7194907750 7367585536 7434496000 7883603200 7914398525 8149984000 8177945600 8964982400 9209481920 9854504000 10130430112 10222432000 11206228000 11511852400 12613765120 12663037640 13039974400 14333824000 14343971840 14389815500 14735171072 15767206400 15828797050 16299968000 16355891200 17929964800 18418963840 19709008000 20260860224 20444864000 22412456000 23023704800 25326075280 28667648000 28687943680 28779631000 29470342144 31534412800 31657594100 32599936000 35859929600 36837927680 39418016000 39571992625 40521720448 40889728000 44824912000 46047409600 50652150560 57559262000 58940684288 63068825600 63315188200 65199872000 71719859200 73675855360 78836032000 79143985250 81043440896 81779456000 89649824000 92094819200 101304301120 115118524000 126630376400 143439718400 147351710720 157672064000 158287970500 162086881792 179299648000 184189638400 202608602240 230237048000 253260752800 294703421440 315344128000 316575941000 324173763584 358599296000 368379276800 405217204480 460474096000 506521505600 633151882000 648347527168 717198592000 736758553600 810434408960 920948192000 1013043011200 1266303764000 1473517107200 1620868817920 1841896384000 2026086022400 2532607528000 3241737635840 3683792768000 4052172044800 5065215056000 7367585536000 8104344089600 10130430112000 16208688179200 20260860224000 40521720448000 81043440896000
• Sum of all divisors σ(n): 223663944591360
• Sum of proper divisors (its aliquot sum) s(n): 142620503695360
• 81043440896000 is an abundant number, because the sum of its proper divisors (142620503695360) is greater than itself. Its abundance is 61577062799360

Bases of 81043440896000

• Binary: 10010011011010101100101100000011000100000000000₂
• Hexadecimal: 0x49B565818800
• Base-36: SQ6UC89VK

Squares and roots of 81043440896000

• 81043440896000 squared (81043440896000²) is 6568039312263445282816000000
• 81043440896000 cubed (81043440896000³) is 532296505806027015759228500443136000000000
• The square root of 81043440896000 is 9002413.0596190709
• The cube root of 81043440896000 is 43275.2206174411

Scales and comparisons

• 81,043,440,896,000 seconds is equal to 2,576,930 years, 38 weeks, 2 days, 3 hours, 33 minutes, 20 seconds.
• To count from 1 to 81,043,440,896,000 would take you about six million, four hundred forty-two thousand, three hundred twenty-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 81043440896000 cubic inches would be around 3606.3 feet tall.

Recreational maths with 81043440896000

• 81043440896000 backwards is 00069804434018
• The number of decimal digits it has is: 14
• The sum of 81043440896000's digits is 47
• More coming soon!