1218031113281920

Names of 1218031113281920

• Cardinal: 1218031113281920 can be written as One quadrillion, two hundred eighteen trillion, thirty-one billion, one hundred thirteen million, two hundred eighty-one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.21803111328192 × 10¹⁵

Factors of 1218031113281920

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 74503

Divisors of 1218031113281920

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 49 56 64 70 80 98 112 128 140 160 196 224 245 280 320 343 392 448 490 560 640 686 784 896 980 1120 1372 1568 1715 1960 2240 2744 3136 3430 3920 4480 5488 6272 6860 7840 10976 13720 15680 21952 27440 31360 43904 54880 74489 109760 148978 219520 297956 372445 521423 595912 744890 1042846 1191824 1489780 2085692 2383648 2607115 2979560 3649961 4171384 4767296 5214230 5959120 7299922 8342768 9534592 10428460 11918240 14599844 16685536 18249805 20856920 23836480 25549727 29199688 33371072 36499610 41713840 47672960 51099454 58399376 66742144 72999220 83427680 102198908 116798752 127748635 145998440 166855360 204397816 233597504 255497270 291996880 333710720 408795632 467195008 510994540 583993760 817591264 1021989080 1167987520 1635182528 2043978160 2335975040 3270365056 4087956320 5548611121 8175912640 11097222242 16351825280 22194444484 27743055605 38840277847 44388888968 55486111210 77680555694 88777777936 110972222420 155361111388 177555555872 194201389235 221944444840 271881944929 310722222776 355111111744 388402778470 443888889680 543763889858 621444445552 710222223488 776805556940 887777779360 1087527779716 1242888891104 1359409724645 1553611113880 1775555558720 1903173614503 2175055559432 2485777782208 2718819449290 3107222227760 3551111117440 3806347229006 4350111118864 4971555564416 5437638898580 6214444455520 7612694458012 8700222237728 9515868072515 10875277797160 12428888911040 15225388916024 17400444475456 19031736145030 21750555594320 24857777822080 30450777832048 34800888950912 38063472290060 43501111188640 60901555664096 76126944580120 87002222377280 121803111328192 152253889160240 174004444754560 243606222656384 304507778320480 609015556640960 1218031113281920
• Sum of all divisors σ(n): 3395795593932000
• Sum of proper divisors (its aliquot sum) s(n): 2177764480650080
• 1218031113281920 is an abundant number, because the sum of its proper divisors (2177764480650080) is greater than itself. Its abundance is 959733367368160

Bases of 1218031113281920

• Binary: 100010100111100101011110111110101010010000110000000₂
• Hexadecimal: 0x453CAF7D52180
• Base-36: BZR7RO7SSG

Squares and roots of 1218031113281920

• 1218031113281920 squared (1218031113281920²) is 1483599792922793431833398886400
• 1218031113281920 cubed (1218031113281920³) is 1807070707438576060465918400477224377253888000
• The square root of 1218031113281920 is 34900302.4812381819
• The cube root of 1218031113281920 is 106795.4608085985

Scales and comparisons

• 1,218,031,113,281,920 seconds is equal to 38,729,621 years, 40 weeks, 5 days, 15 hours, 38 minutes, 40 seconds.
• To count from 1 to 1,218,031,113,281,920 would take you about one hundred sixteen million, one hundred eighty-eight thousand, eight hundred sixty-five 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 1218031113281920 cubic inches would be around 8899.6 feet tall.

Recreational maths with 1218031113281920

• 1218031113281920 backwards is 0291823111308121
• The number of decimal digits it has is: 16
• The sum of 1218031113281920's digits is 43
• More coming soon!