18909009405675368

Names of 18909009405675368

• Cardinal: 18909009405675368 can be written as Eighteen quadrillion, nine hundred nine trillion, nine billion, four hundred five million, six hundred seventy-five thousand, three hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8909009405675368 × 10¹⁶

Factors of 18909009405675368

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 675

Divisors of 18909009405675368

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 7 8 14 23 28 46 49 56 92 98 161 184 196 322 343 392 529 643 644 686 1058 1127 1286 1288 1372 2116 2254 2401 2572 2744 3703 4232 4501 4508 4802 5144 7406 7889 9002 9016 9604 14789 14812 15778 16807 18004 19208 25921 29578 29624 31507 31556 33614 36008 51842 55223 59156 63014 63112 67228 103523 103684 110446 118312 126028 134456 181447 207046 207368 220549 220892 252056 340147 362894 386561 413449 414092 441098 441784 680294 724661 725788 773122 826898 828184 882196 1270129 1360588 1449322 1451576 1543843 1546244 1653796 1764392 2381029 2540258 2721176 2894143 2898644 3087686 3092488 3307592 4762058 5072627 5080516 5788286 5797288 6175372 8890903 9509327 9524116 10145254 10161032 10806901 11576572 12350744 16667203 17781806 19018654 19048232 20259001 20290508 21613802 23153144 33334406 35508389 35563612 38037308 40518002 40581016 43227604 66565289 66668812 71016778 71127224 76074616 81036004 86455208 116670421 133130578 133337624 141813007 142033556 162072008 218714521 233340842 248558723 265847707 266261156 283626014 284067112 437429042 465957023 466681684 497117446 531695414 532522312 567252028 816692947 874858084 931914046 933363368 992691049 994234892 1063390828 1134504056 1531001647 1633385894 1749716168 1860933949 1863828092 1985382098 1988469784 2126781656 3062003294 3261699161 3266771788 3721867898 3727656184 3970764196 5716850629 6114497261 6124006588 6523398322 6533543576 6948837343 7443735796 7941528392 10717011529 11433701258 12228994522 12248013176 13026537643 13046796644 13897674686 14887471592 21434023058 22831894127 22867402516 24457989044 26053075286 26093593288 27795349372 42801480827 42868046116 45663788254 45734805032 48915978088 52106150572 55590698744 75019080703 85602961654 85736092232 91185763501 91327576508 104212301144 140633437003 150038161406 159823258889 171205923308 182371527002 182655153016 281266874006 299610365789 300076322812 319646517778 342411846616 364743054004 525133564921 562533748012 599220731578 600152645624 638300344507 639293035556 729486108008 984434059021 1050267129842 1125067496024 1198441463156 1276600689014 1278586071112 1968868118042 2097272560523 2100534259684 2396882926312 2553201378028 3675934954447 3937736236084 4194545121046 4201068519368 4468102411549 5106402756056 6891038413147 7351869908894 7875472472168 8389090242092 8936204823098 13782076826294 14680907923661 14703739817788 16778180484184 17872409646196 27564153652588 29361815847322 29407479635576 35744819292392 48237268892029 55128307305176 58723631694644 96474537784058 102766355465627 117447263389288 192949075568116 205532710931254 337660882244203 385898151136232 411065421862508 675321764488406 822130843725016 1350643528976812 2363626175709421 2701287057953624 4727252351418842 9454504702837684 18909009405675368
• Sum of all divisors σ(n): 43307045100648000
• Sum of proper divisors (its aliquot sum) s(n): 24398035694972632
• 18909009405675368 is an abundant number, because the sum of its proper divisors (24398035694972632) is greater than itself. Its abundance is 5489026289297264

Bases of 18909009405675368

• Binary: 1000011001011011010010011010100101011100000011101101000₂
• Hexadecimal: 0x432DA4D4AE0768
• Base-36: 566OMZZZFC8

Squares and roots of 18909009405675368

• 18909009405675368 squared (18909009405675368²) is 357550636703919533753128201935424
• 18909009405675368 cubed (18909009405675368³) is 6760928352439630922510568846239454306147443436032
• The square root of 18909009405675368 is 137510033.8363545309
• The cube root of 18909009405675368 is 266413.5191291405

Scales and comparisons

• 18,909,009,405,675,368 seconds is equal to 601,248,009 years, 36 weeks, 15 hours, 36 minutes, 8 seconds.
• To count from 1 to 18,909,009,405,675,368 would take you about one billion, eight hundred three million, seven hundred forty-four thousand and twenty-nine 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 18909009405675368 cubic inches would be around 22201.1 feet tall.

Recreational maths with 18909009405675368

• 18909009405675368 backwards is 86357650490090981
• The number of decimal digits it has is: 17
• The sum of 18909009405675368's digits is 80
• More coming soon!