18181359087680

Names of 18181359087680

• Cardinal: 18181359087680 can be written as Eighteen trillion, one hundred eighty-one billion, three hundred fifty-nine million, eighty-seven thousand, six hundred eighty.

Scientific notation

• Scientific notation: 1.818135908768 × 10¹³

Factors of 18181359087680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 212

Divisors of 18181359087680

• Number of divisors d(n): 420
• Complete list of divisors:
  1 2 4 5 8 10 16 17 20 32 34 40 64 68 79 80 85 109 136 158 160 170 218 272 289 316 320 340 395 436 544 545 578 632 680 790 872 1088 1090 1156 1264 1343 1360 1445 1580 1744 1853 2180 2312 2528 2686 2720 2890 3160 3488 3706 4360 4624 4913 5056 5372 5440 5780 6241 6320 6715 6976 7412 8611 8720 9248 9265 9826 10744 11560 12482 12640 13430 14824 17222 17440 18496 18530 19652 21488 22831 23120 24565 24964 25280 26860 29648 31205 31501 34444 34880 37060 39304 42976 43055 45662 46240 49130 49928 53720 59296 62410 63002 68888 74120 78608 83521 85952 86110 91324 92480 98260 99856 106097 107440 114155 118592 124820 126004 137776 146387 148240 157216 157505 167042 172220 182648 196520 199712 212194 214880 228310 249640 252008 275552 292774 296480 314432 315010 334084 344440 365296 388127 393040 399424 417605 424388 429760 456620 499280 504016 530485 535517 551104 585548 592960 630020 668168 680269 688880 730592 731935 776254 786080 835210 848776 913240 998560 1008032 1060970 1071034 1171096 1260040 1336336 1360538 1377760 1461184 1463870 1552508 1572160 1670420 1697552 1803649 1826480 1940635 1997120 2016064 2121940 2142068 2342192 2488579 2520080 2672672 2677585 2721076 2755520 2927740 3105016 3340840 3395104 3401345 3607298 3652960 3881270 4243880 4284136 4684384 4977158 5040160 5345344 5355170 5442152 5855480 6210032 6598159 6681680 6790208 6802690 7214596 7305920 7762540 8487760 8568272 9018245 9103789 9368768 9954316 10080320 10710340 10884304 11564573 11710960 12420064 12442895 13196318 13363360 13605380 14429192 15525080 16975520 17136544 18036490 18207578 19908632 21420680 21768608 23129146 23421920 24840128 24885790 26392636 26726720 27210760 28858384 30662033 31050160 32990795 33951040 34273088 36072980 36415156 39817264 42305843 42841360 43537216 45518945 46258292 46843840 49771580 52785272 54421520 57716768 57822865 61324066 62100320 65981590 72145960 72830312 79634528 84611686 85682720 91037890 92516584 99543160 105570544 108843040 115433536 115645730 122648132 124200640 131963180 144291920 145660624 153310165 159269056 169223372 171365440 182075780 185033168 196597741 199086320 211141088 211529215 217686080 231291460 245296264 263926360 288583840 291321248 306620330 338446744 364151560 370066336 393195482 398172640 422282176 423058430 462582920 490592528 521254561 527852720 577167680 582642496 613240660 676893488 719199331 728303120 740132672 786390964 796345280 846116860 925165840 981185056 982988705 1042509122 1055705440 1226481320 1353786976 1438398662 1456606240 1572781928 1692233720 1850331680 1962370112 1965977410 2085018244 2111410880 2452962640 2606272805 2707573952 2876797324 2913212480 3145563856 3342161597 3384467440 3595996655 3700663360 3931954820 4170036488 4905925280 5212545610 5753594648 6291127712 6684323194 6768934880 7191993310 7863909640 8340072976 9811850560 10425091220 11507189296 12582255424 13368646388 13537869760 14383986620 15727819280 16680145952 16710807985 20850182440 23014378592 26737292776 28767973240 31455638560 33360291904 33421615970 41700364880 46028757184 53474585552 56816747149 57535946480 62911277120 66843231940 83400729760 106949171104 113633494298 115071892960 133686463880 166801459520 213898342208 227266988596 230143785920 267372927760 284083735745 454533977192 534745855520 568167471490 909067954384 1069491711040 1136334942980 1818135908768 2272669885960 3636271817536 4545339771920 9090679543840 18181359087680
• Sum of all divisors σ(n): 47017308589020
• Sum of proper divisors (its aliquot sum) s(n): 28835949501340
• 18181359087680 is an abundant number, because the sum of its proper divisors (28835949501340) is greater than itself. Its abundance is 10654590413660

Bases of 18181359087680

• Binary: 100001000100100101101011100110011000001000000₂
• Hexadecimal: 0x10892D733040
• Base-36: 6G0EFRSJK

Squares and roots of 18181359087680

• 18181359087680 squared (18181359087680²) is 330561818275164121927782400
• 18181359087680 cubed (18181359087680³) is 6010063118737179911055174098909560832000
• The square root of 18181359087680 is 4263960.4932128533
• The cube root of 18181359087680 is 26295.1376206023

Scales and comparisons

• 18,181,359,087,680 seconds is equal to 578,110 years, 50 weeks, 6 days, 20 hours, 21 minutes, 20 seconds.
• To count from 1 to 18,181,359,087,680 would take you about one million, four hundred forty-five thousand, two hundred seventy-seven 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 18181359087680 cubic inches would be around 2191.3 feet tall.

Recreational maths with 18181359087680

• 18181359087680 backwards is 08678095318181
• The number of decimal digits it has is: 14
• The sum of 18181359087680's digits is 65
• More coming soon!