81709788344000

Names of 81709788344000

• Cardinal: 81709788344000 can be written as Eighty-one trillion, seven hundred nine billion, seven hundred eighty-eight million, three hundred forty-four thousand.

Scientific notation

• Scientific notation: 8.1709788344 × 10¹³

Factors of 81709788344000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 154

Divisors of 81709788344000

• Number of divisors d(n): 672
• Complete list of divisors:
  1 2 4 5 8 10 16 19 20 25 31 32 38 40 50 62 64 76 80 95 97 100 124 125 152 155 160 190 194 200 248 250 304 310 320 361 380 388 400 475 485 496 500 589 608 620 722 760 775 776 800 950 970 992 1000 1178 1216 1240 1444 1520 1550 1552 1600 1805 1843 1900 1940 1984 2000 2356 2375 2425 2480 2888 2945 3007 3040 3100 3104 3610 3686 3800 3875 3880 4000 4712 4750 4850 4960 5776 5890 6014 6080 6200 6208 7220 7372 7600 7750 7760 8000 9025 9215 9409 9424 9500 9700 9920 11191 11552 11780 12028 12125 12400 14440 14725 14744 15035 15200 15500 15520 18050 18430 18818 18848 19000 19400 22382 23104 23560 24056 24250 24800 28880 29450 29488 30070 30400 31000 31040 35017 36100 36860 37636 37696 38000 38800 44764 45125 46075 47045 47120 48112 48500 49600 55955 57133 57760 58900 58976 60140 62000 70034 72200 73625 73720 75175 75272 76000 77600 89528 90250 92150 94090 94240 96224 97000 111910 114266 115520 117800 117952 120280 124000 140068 144400 147250 147440 150350 150544 152000 155200 175085 178771 179056 180500 184300 188180 188480 192448 194000 223820 228532 230375 235225 235600 240560 248000 279775 280136 285665 288800 291679 294500 294880 300700 301088 350170 357542 358112 361000 368600 375875 376360 388000 447640 457064 460750 470450 471200 481120 559550 560272 571330 577600 583358 589000 589760 601400 602176 700340 715084 716224 722000 737200 751750 752720 776000 875425 893855 895280 912673 914128 921500 940900 942400 962240 1085527 1119100 1120544 1142660 1166716 1176125 1178000 1202800 1398875 1400680 1428325 1430168 1444000 1458395 1474400 1503500 1505440 1750850 1787710 1790560 1825346 1828256 1843000 1881800 2171054 2238200 2241088 2285320 2333432 2352250 2356000 2405600 2797750 2801360 2856650 2860336 2888000 2916790 2948800 3007000 3010880 3396649 3501700 3575420 3581120 3650692 3656512 3686000 3763600 4342108 4377125 4469275 4476400 4563365 4570640 4666864 4704500 4712000 4811200 5427635 5541901 5595500 5602720 5713300 5720672 5833580 6014000 6793298 7003400 7141625 7150840 7291975 7301384 7372000 7527200 8684216 8754250 8938550 8952800 9126730 9141280 9333728 9409000 10855270 11083802 11191000 11205440 11426600 11441344 11667160 12028000 13586596 14006800 14283250 14301680 14583950 14602768 14744000 15054400 16983245 17340787 17368432 17508500 17877100 17905600 18253460 18282560 18667456 18818000 21710540 22167604 22346375 22382000 22816825 22853200 23334320 24056000 27138175 27173192 27709505 28013600 28292863 28566500 28603360 29167900 29205536 33966490 34681574 34736864 35017000 35754200 36459875 36506920 37636000 43421080 44335208 44692750 44764000 45633650 45706400 46668640 54276350 54346384 55419010 56027200 56585726 57133000 57206720 58335800 58411072 67932980 69363148 69473728 70034000 71508400 72919750 73013840 75272000 84916225 86703935 86842160 88670416 89385500 89528000 91267300 91412800 93337280 105296119 108552700 108692768 110838020 113171452 114084125 114266000 116671600 135690875 135865960 138547525 138726296 140068000 141464315 143016800 145839500 146027680 169832450 173407870 173684320 177340832 178771000 182534600 210592238 217105400 217385536 221676040 226342904 228168250 228532000 233343200 271381750 271731920 277095050 277452592 280136000 282928630 286033600 291679000 292055360 329474953 339664900 346815740 347368640 354681664 357542000 365069200 421184476 424581125 433519675 434210800 443352080 452685808 456336500 457064000 466686400 526480595 537564397 542763500 543463840 554190100 554905184 565857260 583358000 658949906 679329800 692737625 693631480 707321575 715084000 730138400 842368952 849162250 867039350 868421600 886704160 905371616 912673000 1052961190 1075128794 1085527000 1086927680 1108380200 1109810368 1131714520 1166716000 1317899812 1358659600 1385475250 1387262960 1414643150 1430168000 1460276800 1647374765 1684737904 1698324500 1734078700 1736843200 1773408320 1810743232 1825346000 2105922380 2150257588 2167598375 2171054000 2216760400 2263429040 2333432000 2632402975 2635799624 2687821985 2717319200 2770950500 2774525920 2829286300 3294749530 3369475808 3396649000 3468157400 3536607875 3650692000 4211844760 4300515176 4335196750 4342108000 4433520800 4526858080 5264805950 5271599248 5375643970 5434638400 5541901000 5549051840 5658572600 6589499060 6738951616 6793298000 6936314800 7073215750 7301384000 8236873825 8423689520 8601030352 8670393500 8684216000 8867041600 9053716160 10213723543 10529611900 10543198496 10751287940 11083802000 11317145200 13162014875 13178998120 13439109925 13586596000 13872629600 14146431500 16473747650 16847379040 17202060704 17340787000 20427447086 21059223800 21086396992 21502575880 22167604000 22634290400 26324029750 26357996240 26878219850 27173192000 27745259200 28292863000 32947495300 33694758080 34404121408 34681574000 40854894172 41184369125 42118447600 43005151760 44335208000 45268580800 51068617715 52648059500 52715992480 53756439700 56585726000 65894990600 67195549625 69363148000 81709788344 82368738250 84236895200 86010303520 102137235430 105296119000 105431984960 107512879400 113171452000 131789981200 134391099250 138726296000 163419576688 164737476500 168473790400 172020607040 204274470860 210592238000 215025758800 226342904000 255343088575 263579962400 268782198500 326839153376 329474953000 408548941720 421184476000 430051517600 510686177150 527159924800 537564397000 653678306752 658949906000 817097883440 842368952000 860103035200 1021372354300 1075128794000 1276715442875 1317899812000 1634195766880 2042744708600 2150257588000 2553430885750 2635799624000 3268391533760 4085489417200 4300515176000 5106861771500 8170978834400 10213723543000 16341957668800 20427447086000 40854894172000 81709788344000
• Sum of all divisors σ(n): 222750646110720
• Sum of proper divisors (its aliquot sum) s(n): 141040857766720
• 81709788344000 is an abundant number, because the sum of its proper divisors (141040857766720) is greater than itself. Its abundance is 59331069422720

Bases of 81709788344000

• Binary: 10010100101000010001010111010001010111011000000₂
• Hexadecimal: 0x4A508AE8AEC0
• Base-36: SYOYIANCW

Squares and roots of 81709788344000

• 81709788344000 squared (81709788344000²) is 6676489511221278262336000000
• 81709788344000 cubed (81709788344000³) is 545534544842826659764602667011584000000000
• The square root of 81709788344000 is 9039346.6768345599
• The cube root of 81709788344000 is 43393.5014627975

Scales and comparisons

• 81,709,788,344,000 seconds is equal to 2,598,118 years, 27 weeks, 1 day, 20 hours, 53 minutes, 20 seconds.
• To count from 1 to 81,709,788,344,000 would take you about six million, four hundred ninety-five thousand, two hundred ninety-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 81709788344000 cubic inches would be around 3616.1 feet tall.

Recreational maths with 81709788344000

• 81709788344000 backwards is 00044388790718
• The number of decimal digits it has is: 14
• The sum of 81709788344000's digits is 59
• More coming soon!