81360820224000

Names of 81360820224000

• Cardinal: 81360820224000 can be written as Eighty-one trillion, three hundred sixty billion, eight hundred twenty million, two hundred twenty-four thousand.

Scientific notation

• Scientific notation: 8.1360820224 × 10¹³

Factors of 81360820224000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 22
• Sum of prime factors: 1223

Divisors of 81360820224000

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 27 30 32 36 40 45 48 50 54 60 64 72 75 80 90 96 100 108 120 125 128 135 144 150 160 180 192 200 216 225 240 250 256 270 288 300 320 360 375 384 400 432 450 480 500 512 540 576 600 640 675 720 750 768 800 864 900 960 1000 1024 1080 1125 1152 1200 1213 1280 1350 1440 1500 1536 1600 1728 1800 1920 2000 2048 2160 2250 2304 2400 2426 2560 2700 2880 3000 3072 3200 3375 3456 3600 3639 3840 4000 4096 4320 4500 4608 4800 4852 5120 5400 5760 6000 6065 6144 6400 6750 6912 7200 7278 7680 8000 8192 8640 9000 9216 9600 9704 10240 10800 10917 11520 12000 12130 12288 12800 13500 13824 14400 14556 15360 16000 16384 17280 18000 18195 18432 19200 19408 20480 21600 21834 23040 24000 24260 24576 25600 27000 27648 28800 29112 30325 30720 32000 32751 34560 36000 36390 36864 38400 38816 40960 43200 43668 46080 48000 48520 49152 51200 54000 54585 55296 57600 58224 60650 61440 64000 65502 69120 72000 72780 73728 76800 77632 81920 86400 87336 90975 92160 96000 97040 102400 108000 109170 110592 115200 116448 121300 122880 128000 131004 138240 144000 145560 147456 151625 153600 155264 163755 172800 174672 181950 184320 192000 194080 204800 216000 218340 221184 230400 232896 242600 245760 256000 262008 272925 276480 288000 291120 303250 307200 310528 327510 345600 349344 363900 368640 384000 388160 409600 432000 436680 442368 454875 460800 465792 485200 512000 524016 545850 552960 576000 582240 606500 614400 621056 655020 691200 698688 727800 737280 768000 776320 818775 864000 873360 909750 921600 931584 970400 1024000 1048032 1091700 1105920 1152000 1164480 1213000 1228800 1242112 1310040 1364625 1382400 1397376 1455600 1471369 1536000 1552640 1637550 1728000 1746720 1819500 1843200 1863168 1940800 2048000 2096064 2183400 2211840 2304000 2328960 2426000 2484224 2620080 2729250 2764800 2794752 2911200 2942738 3072000 3105280 3275100 3456000 3493440 3639000 3686400 3726336 3881600 4093875 4192128 4366800 4414107 4608000 4657920 4852000 4968448 5240160 5458500 5529600 5589504 5822400 5885476 6144000 6210560 6550200 6912000 6986880 7278000 7356845 7452672 7763200 8187750 8384256 8733600 8828214 9216000 9315840 9704000 9936896 10480320 10917000 11059200 11179008 11644800 11770952 12421120 13100400 13242321 13824000 13973760 14556000 14713690 14905344 15526400 16375500 16768512 17467200 17656428 18432000 18631680 19408000 19873792 20960640 21834000 22070535 22358016 23289600 23541904 24842240 26200800 26484642 27648000 27947520 29112000 29427380 29810688 31052800 32751000 33537024 34934400 35312856 36784225 37263360 38816000 39726963 41921280 43668000 44141070 44716032 46579200 47083808 49684480 52401600 52969284 55296000 55895040 58224000 58854760 59621376 62105600 65502000 66211605 67074048 69868800 70625712 73568450 74526720 77632000 79453926 83842560 87336000 88282140 89432064 93158400 94167616 99368960 104803200 105938568 110352675 111790080 116448000 117709520 124211200 131004000 132423210 134148096 139737600 141251424 147136900 149053440 155264000 158907852 167685120 174672000 176564280 178864128 183921125 186316800 188335232 198634815 209606400 211877136 220705350 223580160 232896000 235419040 248422400 262008000 264846420 268296192 279475200 282502848 294273800 298106880 310528000 317815704 331058025 335370240 349344000 353128560 367842250 372633600 376670464 397269630 419212800 423754272 441410700 447160320 465792000 470838080 496844800 524016000 529692840 536592384 551763375 558950400 565005696 588547600 621056000 635631408 662116050 670740480 698688000 706257120 735684500 745267200 753340928 794539260 838425600 847508544 882821400 894320640 931584000 941676160 993174075 1048032000 1059385680 1103526750 1117900800 1130011392 1177095200 1242112000 1271262816 1324232100 1341480960 1397376000 1412514240 1471369000 1490534400 1506681856 1589078520 1655290125 1676851200 1695017088 1765642800 1863168000 1883352320 1986348150 2096064000 2118771360 2207053500 2235801600 2260022784 2354190400 2484224000 2542525632 2648464200 2682961920 2794752000 2825028480 2942738000 3013363712 3178157040 3310580250 3353702400 3390034176 3531285600 3726336000 3766704640 3972696300 4192128000 4237542720 4414107000 4471603200 4520045568 4708380800 4965870375 5085051264 5296928400 5589504000 5650056960 5885476000 6026727424 6356314080 6621160500 6707404800 6780068352 7062571200 7452672000 7533409280 7945392600 8384256000 8475085440 8828214000 9040091136 9416761600 9931740750 10170102528 10593856800 11179008000 11300113920 11770952000 12053454848 12712628160 13242321000 13414809600 13560136704 14125142400 15066818560 15890785200 16768512000 16950170880 17656428000 18080182272 18833523200 19863481500 20340205056 21187713600 22358016000 22600227840 23541904000 24106909696 25425256320 26484642000 27120273408 28250284800 30133637120 31781570400 33537024000 33900341760 35312856000 36160364544 37667046400 39726963000 40680410112 42375427200 45200455680 47083808000 50850512640 52969284000 54240546816 56500569600 60267274240 63563140800 67074048000 67800683520 70625712000 72320729088 75334092800 79453926000 81360820224 84750854400 90400911360 94167616000 101701025280 105938568000 108481093632 113001139200 120534548480 127126281600 135601367040 141251424000 150668185600 158907852000 162721640448 169501708800 180801822720 188335232000 203402050560 211877136000 216962187264 226002278400 254252563200 271202734080 282502848000 301336371200 317815704000 325443280896 339003417600 361603645440 376670464000 406804101120 423754272000 452004556800 508505126400 542405468160 565005696000 602672742400 635631408000 650886561792 678006835200 753340928000 813608202240 847508544000 904009113600 1017010252800 1084810936320 1130011392000 1271262816000 1356013670400 1506681856000 1627216404480 1695017088000 1808018227200 2034020505600 2260022784000 2542525632000 2712027340800 3013363712000 3254432808960 3390034176000 4068041011200 4520045568000 5085051264000 5424054681600 6780068352000 8136082022400 9040091136000 10170102528000 13560136704000 16272164044800 20340205056000 27120273408000 40680410112000 81360820224000
• Sum of all divisors σ(n): 301093273484640
• Sum of proper divisors (its aliquot sum) s(n): 219732453260640
• 81360820224000 is an abundant number, because the sum of its proper divisors (219732453260640) is greater than itself. Its abundance is 138371633036640

Bases of 81360820224000

• Binary: 10010011111111101001010110010011100000000000000₂
• Hexadecimal: 0x49FF4AC9C000
• Base-36: SU8N7OQO0

Squares and roots of 81360820224000

• 81360820224000 squared (81360820224000²) is 6619583067522047410176000000
• 81360820224000 cubed (81360820224000³) is 538574707914495752495734324199424000000000
• The square root of 81360820224000 is 9020023.2939832257
• The cube root of 81360820224000 is 43331.6379747503

Scales and comparisons

• 81,360,820,224,000 seconds is equal to 2,587,022 years, 21 weeks, 5 days.
• To count from 1 to 81,360,820,224,000 would take you about six million, four hundred sixty-seven thousand, five hundred fifty-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 81360820224000 cubic inches would be around 3611 feet tall.

Recreational maths with 81360820224000

• 81360820224000 backwards is 00042202806318
• 81360820224000 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81360820224000's digits is 36
• More coming soon!