81493632831520

Names of 81493632831520

• Cardinal: 81493632831520 can be written as Eighty-one trillion, four hundred ninety-three billion, six hundred thirty-two million, eight hundred thirty-one thousand, five hundred twenty.

Scientific notation

• Scientific notation: 8.149363283152 × 10¹³

Factors of 81493632831520

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2841

Divisors of 81493632831520

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 19 20 26 28 32 35 38 40 52 56 65 70 76 80 91 95 104 112 130 133 140 152 160 182 190 191 208 224 247 260 266 280 304 364 380 382 416 455 494 520 532 560 608 665 728 760 764 910 911 955 988 1040 1064 1120 1235 1330 1337 1456 1520 1528 1693 1729 1820 1822 1910 1976 2080 2128 2470 2483 2660 2674 2912 3040 3056 3386 3458 3629 3640 3644 3820 3952 4256 4555 4940 4966 5320 5348 6112 6377 6685 6772 6916 7258 7280 7288 7640 7904 8465 8645 9110 9880 9932 10640 10696 11843 11851 12415 12754 13370 13544 13832 14516 14560 14576 15280 16930 17290 17309 17381 18145 18220 19760 19864 21280 21392 22009 23686 23702 24830 25403 25508 26740 27088 27664 29032 29152 30560 31885 32167 33860 34580 34618 34762 36290 36440 39520 39728 42784 44018 47177 47372 47404 49660 50806 51016 53480 54176 55328 58064 59215 59255 63770 64334 67720 69160 69236 69524 72580 72880 79456 82901 86545 86905 88036 94354 94744 94808 99320 101612 102032 106960 110045 116128 118430 118510 121163 127015 127540 128668 135440 138320 138472 139048 145160 145760 154063 160835 165802 173090 173810 174001 176072 188708 189488 189616 198640 203224 204064 213920 220090 225017 225169 235885 236860 237020 242326 254030 255080 257336 270880 276640 276944 278096 290320 308126 321670 323363 330239 331604 346180 347620 348002 352144 377416 378976 379232 397280 406448 414505 418171 440180 450034 450338 471770 473720 474040 484652 508060 510160 514672 553888 556192 580640 605815 616252 643340 646726 660478 663208 692360 695240 696004 704288 754832 770315 812896 829010 836342 870005 880360 900068 900676 943540 947440 948080 969304 1016120 1020320 1029344 1125085 1125845 1211630 1218007 1232504 1286680 1293452 1320956 1326416 1384720 1390480 1392008 1509664 1540630 1542323 1575119 1616815 1651195 1658020 1672684 1740010 1760720 1800136 1801352 1887080 1894880 1896160 1938608 2032240 2090855 2250170 2251690 2262013 2263541 2423260 2436014 2465008 2573360 2586904 2641912 2652832 2769440 2780960 2784016 2927197 3081260 3084646 3150238 3233630 3302390 3306019 3316040 3345368 3480020 3521440 3600272 3602704 3774160 3877216 4064480 4181710 4203719 4500340 4503380 4524026 4527082 4846520 4872028 4930016 5146720 5173808 5283824 5568032 5854394 6090035 6143897 6162520 6169292 6300476 6467260 6604780 6612038 6632080 6690736 6960040 7200544 7205408 7548320 7711615 7875595 8363420 8407438 9000680 9006760 9048052 9054164 9693040 9744056 10347616 10567648 10796261 11310065 11317705 11708788 12180070 12287794 12325040 12338584 12600952 12934520 13209560 13224076 13264160 13381472 13920080 14635985 15423230 15751190 15834091 16530095 16726840 16814876 18001360 18013520 18096104 18108328 19386080 19488112 20050199 21018595 21592522 22620130 22635410 23142133 23417576 24360140 24575588 24650080 24677168 25201904 25869040 26419120 26448152 27840160 29271970 29304137 29426033 30719485 30846460 31502380 31668182 33060190 33453680 33629752 36002720 36027040 36192208 36216656 38976224 40100398 42037190 42978247 43007279 43185044 45240260 45270820 46284266 46835152 48720280 49151176 49354336 50403808 51738080 52838240 52896304 53981305 58543940 58608274 58852066 61438970 61692920 63004760 63336364 66120380 66907360 67259504 72384416 72433312 79170455 79870661 80200796 84074380 85956494 86014558 86370088 90480520 90541640 92568532 93670304 97440560 98302352 100250995 105792608 107962610 115710665 117087880 117216548 117704132 122877940 123385840 126009520 126672728 132240760 134519008 140351393 146520685 147130165 158340910 159741322 160401592 168148760 171912988 172029116 172740176 180961040 181083280 185137064 194881120 196604704 200501990 205128959 214891235 215036395 215925220 231421330 234175760 234433096 235408264 245755880 246771680 252019040 253345456 264481520 280702786 293041370 294260330 294583693 300847729 316681820 319482644 320803184 336297520 343825976 344058232 345480352 361922080 362166560 370274128 380953781 399353305 401003980 410257918 429782470 430072790 431850440 462842660 468351520 468866192 470816528 491511760 506690912 528963040 559094627 561405572 586082740 588520660 589167386 601695458 633363640 638965288 641606368 672595040 687651952 688116464 701756965 740548256 761907562 798706610 802007960 820515836 859564940 860145580 863700880 925685320 937732384 941633056 983023520 1025644795 1118189254 1122811144 1172165480 1177041320 1178334772 1203390916 1266727280 1277930576 1375303904 1376232928 1403513930 1472918465 1504238645 1523815124 1597413220 1604015920 1641031672 1719129880 1720291160 1727401760 1851370640 1904768905 2051289590 2062085851 2236378508 2245622288 2344330960 2354082640 2356669544 2406781832 2533454560 2555861152 2666676467 2795473135 2807027860 2945836930 3008477290 3047630248 3194826440 3208031840 3282063344 3438259760 3440582320 3702741280 3809537810 3829588009 4102579180 4124171702 4472757016 4491244576 4688661920 4708165280 4713339088 4813563664 5333352934 5590946270 5597090167 5614055720 5891673860 6016954580 6095260496 6389652880 6564126688 6876519520 6881164640 7619075620 7659176018 8205158360 8248343404 8945514032 9426678176 9627127328 10310429255 10666705868 11181892540 11194180334 11228111440 11783347720 12033909160 12190520992 12779305760 13333382335 15238151240 15318352036 16410316720 16496686808 17891028064 19147940045 20620858510 21333411736 22363785080 22388360668 22456222880 23566695440 24067818320 26666764670 26807116063 27985450835 30476302480 30636704072 32820633440 32993373616 38295880090 39179631169 41241717020 42666823472 44727570160 44776721336 47133390880 48135636640 53333529340 53614232126 55970901670 60952604960 61273408144 65986747232 72762172171 76591760180 78359262338 82483434040 85333646944 89455140320 89553442672 106667058680 107228464252 111941803340 122546816288 134035580315 145524344342 153183520360 156718524676 164966868080 179106885344 195898155845 213334117360 214456928504 223883606680 268071160630 291048688684 306367040720 313437049352 329933736160 363810860855 391796311690 426668234720 428913857008 447767213360 509335205197 536142321260 582097377368 612734081440 626874098704 727621721710 783592623380 857827714016 895534426720 1018670410394 1072284642520 1164194754736 1253748197408 1455243443420 1567185246760 2037340820788 2144569285040 2328389509472 2546676025985 2910486886840 3134370493520 4074681641576 4289138570080 5093352051970 5820973773680 6268740987040 8149363283152 10186704103940 11641947547360 16298726566304 20373408207880 40746816415760 81493632831520
• Sum of all divisors σ(n): 251159315742720
• Sum of proper divisors (its aliquot sum) s(n): 169665682911200
• 81493632831520 is an abundant number, because the sum of its proper divisors (169665682911200) is greater than itself. Its abundance is 88172050079680

Bases of 81493632831520

• Binary: 10010100001111000110111000010010101000000100000₂
• Hexadecimal: 0x4A1E37095020
• Base-36: SVXNOVUHS

Squares and roots of 81493632831520

• 81493632831520 squared (81493632831520²) is 6641212192078594452705510400
• 81493632831520 cubed (81493632831520³) is 541216507937467053363217128223458807808000
• The square root of 81493632831520 is 9027382.3908993685
• The cube root of 81493632831520 is 43355.2032042493

Scales and comparisons

• 81,493,632,831,520 seconds is equal to 2,591,245 years, 23 weeks, 1 day, 22 hours, 58 minutes, 40 seconds.
• To count from 1 to 81,493,632,831,520 would take you about six million, four hundred seventy-eight thousand, one hundred thirteen 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 81493632831520 cubic inches would be around 3612.9 feet tall.

Recreational maths with 81493632831520

• 81493632831520 backwards is 02513823639418
• The number of decimal digits it has is: 14
• The sum of 81493632831520's digits is 55
• More coming soon!