12918471854543280

Names of 12918471854543280

• Cardinal: 12918471854543280 can be written as Twelve quadrillion, nine hundred eighteen trillion, four hundred seventy-one billion, eight hundred fifty-four million, five hundred forty-three thousand, two hundred eighty.

Scientific notation

• Scientific notation: 1.291847185454328 × 10¹⁶

Factors of 12918471854543280

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 7671545

Divisors of 12918471854543280

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 90 108 120 135 144 180 216 240 270 360 432 433 540 720 866 1080 1299 1732 1801 2160 2165 2598 3464 3602 3897 4330 5196 5403 6495 6928 7204 7794 8660 9005 10392 10806 11691 12990 14408 15588 16209 17320 18010 19485 20784 21612 23382 25980 27015 28816 31176 32418 34640 36020 38970 43224 46764 48627 51960 54030 58455 62352 64836 72040 77940 81045 86448 93528 97254 103920 108060 116910 129672 144080 155880 162090 187056 194508 216120 233820 243135 259344 311760 324180 389016 432240 467640 486270 648360 778032 779833 935280 972540 1296720 1559666 1945080 2339499 3119332 3890160 3899165 4678998 6238664 7018497 7669301 7798330 9357996 11697495 12477328 14036994 15338602 15596660 18715992 21055491 23007903 23394990 28073988 30677204 31193320 35092485 37431984 38346505 42110982 46015806 46789980 56147976 61354408 62386640 69023709 70184970 76693010 84221964 92031612 93579960 105277455 112295952 115039515 122708816 138047418 140369940 153386020 168443928 184063224 187159920 207071127 210554910 230079030 276094836 280739880 306772040 336887856 345118545 368126448 414142254 421109820 460158060 552189672 561479760 613544080 690237090 828284508 842219640 920316120 1035355635 1104379344 1380474180 1656569016 1684439280 1840632240 2070711270 2760948360 3313138032 3320807333 4141422540 5521896720 6641614666 8282845080 9962421999 13283229332 13812411101 16565690160 16604036665 19924843998 26566458664 27624822202 29887265997 33208073330 39849687996 41437233303 49812109995 53132917328 55249644404 59774531994 66416146660 69062055505 79699375992 82874466606 89661797991 99624219990 110499288808 119549063988 124311699909 132832293320 138124111010 149436329985 159398751984 165748933212 179323595982 199248439980 207186166515 220998577616 239098127976 248623399818 265664586640 276248222020 298872659970 331497866424 358647191964 372935099727 398496879960 414372333030 448308989955 478196255952 497246799636 552496444040 597745319940 621558499545 662995732848 717294383928 745870199454 796993759920 828744666060 896617979910 994493599272 1104992888080 1195490639880 1243116999090 1434588767856 1491740398908 1657489332120 1793235959820 1864675498635 1988987198544 2390981279760 2486233998180 2983480797816 3314978664240 3586471919640 3729350997270 4972467996360 5966961595632 5980774006733 7172943839280 7458701994540 9944935992720 11961548013466 14917403989080 17942322020199 23923096026932 29834807978160 29903870033665 35884644040398 47846192053864 53826966060597 59807740067330 71769288080796 89711610100995 95692384107728 107653932121194 119615480134660 143538576161592 161480898181791 179423220201990 215307864242388 239230960269320 269134830302985 287077152323184 322961796363582 358846440403980 430615728484776 478461920538640 538269660605970 645923592727164 717692880807960 807404490908955 861231456969552 1076539321211940 1291847185454328 1435385761615920 1614808981817910 2153078642423880 2583694370908656 3229617963635820 4306157284847760 6459235927271640 12918471854543280
• Sum of all divisors σ(n): 44624492633427840
• Sum of proper divisors (its aliquot sum) s(n): 31706020778884560
• 12918471854543280 is an abundant number, because the sum of its proper divisors (31706020778884560) is greater than itself. Its abundance is 18787548924341280

Bases of 12918471854543280

• Binary: 101101111001010100100000011101111011100101000110110000₂
• Hexadecimal: 0x2DE5481DEE51B0
• Base-36: 3J77S1H4WC0

Squares and roots of 12918471854543280

• 12918471854543280 squared (12918471854543280²) is 166886915056626892093977393158400
• 12918471854543280 cubed (12918471854543280³) is 2155923915050589644907506334365898601828695552000
• The square root of 12918471854543280 is 113659455.6319151125
• The cube root of 12918471854543280 is 234640.8992832751

Scales and comparisons

• 12,918,471,854,543,280 seconds is equal to 410,767,445 years, 26 weeks, 6 days, 7 hours, 48 minutes.
• To count from 1 to 12,918,471,854,543,280 would take you about one billion, two hundred thirty-two million, three hundred two thousand, three hundred thirty-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 12918471854543280 cubic inches would be around 19553.4 feet tall.

Recreational maths with 12918471854543280

• 12918471854543280 backwards is 08234545817481921
• 12918471854543280 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 12918471854543280's digits is 72
• More coming soon!