81316189080

Names of 81316189080

• Cardinal: 81316189080 can be written as Eighty-one billion, three hundred sixteen million, one hundred eighty-nine thousand and eighty.

Scientific notation

• Scientific notation: 8.131618908 × 10¹⁰

Factors of 81316189080

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 161

Divisors of 81316189080

• Number of divisors d(n): 1152
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 17 18 20 21 24 28 29 30 34 35 36 37 40 42 45 51 56 58 60 61 63 68 70 72 74 84 85 87 90 102 105 111 116 119 120 122 126 136 140 145 148 153 168 170 174 180 183 185 203 204 210 222 232 238 244 252 255 259 261 280 290 296 305 306 315 333 340 348 357 360 366 370 406 408 420 427 435 444 476 488 493 504 510 518 522 549 555 580 595 609 610 612 629 630 666 680 696 714 732 740 765 777 812 840 841 854 870 888 915 952 986 1015 1020 1036 1037 1044 1071 1073 1098 1110 1160 1190 1218 1220 1224 1258 1260 1281 1295 1305 1332 1428 1464 1479 1480 1530 1554 1624 1665 1682 1708 1740 1769 1785 1827 1830 1887 1972 2030 2040 2072 2074 2088 2135 2142 2146 2196 2220 2257 2331 2380 2436 2440 2465 2516 2520 2523 2562 2590 2610 2664 2745 2856 2958 3045 3060 3108 3111 3145 3219 3330 3364 3416 3451 3480 3538 3570 3654 3660 3774 3843 3885 3944 4060 4148 4205 4270 4284 4292 4392 4403 4437 4440 4514 4662 4760 4872 4930 5032 5046 5124 5180 5185 5220 5307 5355 5365 5490 5661 5887 5916 6090 6120 6216 6222 6290 6405 6438 6660 6728 6771 6902 7076 7140 7259 7308 7320 7395 7511 7548 7569 7686 7770 8120 8296 8410 8540 8568 8584 8806 8845 8874 9028 9135 9324 9333 9435 9657 9860 10092 10248 10353 10360 10370 10440 10614 10710 10730 10980 11285 11322 11655 11774 11832 12180 12383 12444 12580 12615 12810 12876 13209 13320 13542 13804 14152 14280 14297 14518 14616 14790 15022 15096 15138 15372 15540 15555 15799 15921 16095 16820 17080 17255 17612 17661 17690 17748 18056 18241 18270 18648 18666 18870 19215 19314 19720 20184 20313 20706 20740 21228 21420 21460 21777 21960 22015 22185 22533 22570 22644 23310 23548 24360 24766 24888 25160 25230 25620 25752 26418 26535 27084 27608 28305 28594 29036 29435 29580 30044 30073 30276 30744 31059 31080 31110 31117 31598 31842 32190 33640 33855 34510 35224 35322 35380 35496 36295 36482 36540 37149 37332 37555 37740 37845 38369 38430 38628 39627 40626 41412 41480 42456 42840 42891 42920 43554 44030 44370 45066 45140 45288 46620 46665 47096 47397 48285 49532 50460 51240 51301 51765 52836 52983 53070 54168 54723 56610 57188 58072 58870 59160 60088 60146 60552 61915 62118 62220 62234 63196 63684 64380 65331 65453 66045 67599 67710 69020 70644 70760 71485 72590 72964 73080 74298 74664 75110 75480 75690 76738 76860 77256 78995 79254 79605 81252 82824 85782 87108 88060 88305 88740 90132 90219 90280 91205 93240 93330 93351 94794 96570 99064 100079 100920 101565 102602 103530 105672 105966 106140 108885 109446 111447 112665 113220 114376 115107 117740 120292 123830 124236 124440 124468 126392 127368 127687 128673 128760 130662 130906 132090 135198 135420 138040 141288 142191 142970 145180 145928 148596 150220 150365 151380 153476 153720 153903 155295 155585 157990 158508 159210 162504 164169 171564 174216 176120 176610 177480 180264 180438 182410 185745 186660 186702 189588 191845 193140 196359 198135 200158 203130 205204 207060 210511 211932 212280 214455 217770 217819 218892 222894 225330 226440 230214 235480 236985 240584 247660 248472 248936 255374 256505 257346 261324 261812 264180 264915 268583 270396 270657 270840 273615 280053 284382 285940 290360 297192 300237 300440 300730 302760 306952 307806 310590 311170 315980 317016 318420 326655 327265 328338 337995 343128 345321 353220 359107 360876 364820 371490 373320 373404 379176 383061 383690 386280 392718 396270 400316 406260 410408 414120 421022 423864 428910 435540 435638 437784 445788 450660 451095 458171 460428 461709 466755 473970 495320 500395 510748 513010 514692 522648 523624 528360 528989 529830 537166 540792 541314 547230 557235 560106 568764 571880 575535 589077 600474 601460 615612 621180 622340 631533 631960 636840 638435 643365 653310 653457 654530 656676 675990 690642 706440 710955 718214 721752 729640 742980 746808 766122 767380 769515 785436 792540 800632 805749 812520 820845 842044 857820 871080 871276 872117 891576 900711 901320 902190 916342 920856 923418 933510 947940 981795 1000790 1021496 1026020 1029384 1052555 1057978 1059660 1074332 1077321 1082628 1089095 1094460 1112701 1114470 1120212 1137528 1149183 1151070 1178154 1200948 1202920 1231224 1242360 1244680 1263066 1276870 1286730 1306620 1306914 1309060 1313352 1342915 1351980 1353285 1374513 1381284 1400265 1421910 1436428 1485960 1501185 1532244 1534760 1539030 1570872 1585080 1586967 1611498 1641690 1684088 1715640 1726605 1742552 1744234 1795535 1801422 1804380 1832684 1846836 1867020 1894599 1895880 1898137 1915305 1960371 1963590 2001580 2052040 2105110 2115956 2119320 2148664 2154642 2165256 2178190 2188920 2225402 2228940 2240424 2290855 2298366 2302140 2308545 2356308 2401896 2417247 2526132 2553740 2573460 2613240 2613828 2616351 2618120 2644945 2685830 2703960 2706570 2749026 2762568 2800530 2843820 2872856 2945385 3002370 3064488 3078060 3157665 3173934 3222996 3231963 3267285 3283380 3338103 3453210 3488468 3591070 3602844 3608760 3665368 3693672 3702923 3734040 3789198 3796274 3830610 3920742 3927180 4003160 4028745 4123539 4210220 4231912 4309284 4356380 4360585 4450804 4457880 4503555 4581710 4596732 4604280 4617090 4712616 4760901 4834494 5052264 5107480 5146920 5227656 5232702 5289890 5371660 5386605 5413140 5498052 5563505 5601060 5687640 5694411 5745915 5890770 6004740 6104819 6156120 6315330 6347868 6445992 6463926 6534570 6566760 6676206 6872565 6906420 6976936 7182140 7205688 7405846 7578396 7592548 7661220 7788907 7841484 7849053 7854360 7934835 8057490 8247078 8420440 8618568 8712760 8721170 8901608 9007110 9163420 9193464 9234180 9472995 9490685 9521802 9668988 9801855 10014309 10465404 10579780 10743320 10773210 10826280 10996104 11108769 11127010 11202120 11388822 11491830 11781540 12009480 12086235 12209638 12630660 12695736 12927852 13069140 13081755 13286959 13352412 13745130 13812840 14364280 14811692 15156792 15185096 15322440 15577814 15682968 15698106 15869670 16114980 16159815 16494156 16690515 17083233 17442340 18014220 18314457 18326840 18468360 18514615 18945990 18981370 19043604 19337976 19603710 20028618 20617695 20930808 21159560 21546420 22217538 22254020 22777644 22983660 23366721 23563080 23804505 24172470 24419276 25261320 25855704 26138280 26163510 26573918 26704824 27490260 28472055 29623384 30524095 31155628 31396212 31739340 32229960 32268329 32319630 32988312 33326307 33381030 34166466 34884680 36028440 36628914 37029230 37891980 37962740 38087208 38944535 39207420 39245265 39860877 40057236 41235390 43092840 44435076 44508040 45555288 45967320 46733442 47609010 48344940 48838552 50071545 52327020 53147836 54943371 54980520 55543845 56944110 61048190 62311256 62792424 63478680 64536658 64639260 66434795 66652614 66762060 68332932 70100163 73257828 74058460 75783960 75925480 77889070 78414840 78490530 79721754 80114472 82470780 85416165 88870152 91572285 93466884 95218020 96689880 96804987 100143090 104654040 106295672 109886742 111087690 113888220 116833605 119582631 122096380 129073316 129278520 132869590 133305228 133524120 136665864 140200326 146515656 148116920 155778140 156981060 159443508 161341645 164941560 166631535 170832330 183144570 186933768 190436040 193609974 199304385 200286180 219773484 222175380 225878303 227776440 233667210 239165262 244192760 258146632 265739180 266610456 274716855 280400652 290414961 311556280 313962120 318887016 322683290 333263070 341664660 350500815 366289140 387219948 398608770 400572360 439546968 444350760 451756606 467334420 478330524 484024935 531478360 549433710 560801304 580829922 597913155 645366580 666526140 677634909 683329320 701001630 732578280 774439896 797217540 903513212 934668840 956661048 968049870 1098867420 1129391515 1161659844 1195826310 1290733160 1333052280 1355269818 1402003260 1452074805 1594435080 1807026424 1936099740 2032904727 2197734840 2258783030 2323319688 2391652620 2710539636 2804006520 2904149610 3388174545 3872199480 4065809454 4517566060 4783305240 5421079272 5808299220 6776349090 8131618908 9035132120 10164523635 11616598440 13552698180 16263237816 20329047270 27105396360 40658094540 81316189080
• Sum of all divisors σ(n): 345733764480
• Sum of proper divisors (its aliquot sum) s(n): 264417575400
• 81316189080 is an abundant number, because the sum of its proper divisors (264417575400) is greater than itself. Its abundance is 183101386320

Bases of 81316189080

• Binary: 1001011101110110100101001001110011000₂
• Hexadecimal: 0x12EED29398
• Base-36: 11CTK520

Squares and roots of 81316189080

• 81316189080 squared (81316189080²) is 6612322606494311246400
• 81316189080 cubed (81316189080³) is 537688875327649849256632869312000
• The square root of 81316189080 is 285159.9359657665
• The cube root of 81316189080 is 4332.3713217261

Scales and comparisons

• 81,316,189,080 seconds is equal to 2,585 years, 31 weeks, 2 days, 14 hours, 18 minutes.
• To count from 1 to 81,316,189,080 would take you about five thousand, one hundred seventy-one 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 81316189080 cubic inches would be around 361 feet tall.

Recreational maths with 81316189080

• 81316189080 backwards is 08098161318
• 81316189080 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81316189080's digits is 45
• More coming soon!