1938399935940

Names of 1938399935940

• Cardinal: 1938399935940 can be written as One trillion, nine hundred thirty-eight billion, three hundred ninety-nine million, nine hundred thirty-five thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.93839993594 × 10¹²

Factors of 1938399935940

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 199196

Divisors of 1938399935940

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 13 15 18 19 20 26 27 30 36 38 39 45 52 54 57 60 65 73 76 78 90 95 108 114 117 130 135 146 156 171 180 190 195 219 228 234 247 260 270 285 292 342 351 365 380 390 438 468 494 513 540 570 585 657 684 702 730 741 780 855 876 949 988 1026 1095 1140 1170 1235 1314 1387 1404 1460 1482 1710 1755 1898 1971 2052 2190 2223 2340 2470 2565 2628 2774 2847 2964 3285 3420 3510 3705 3796 3942 4161 4380 4446 4745 4940 5130 5548 5694 6570 6669 6935 7020 7410 7884 8322 8541 8892 9490 9855 10260 11115 11388 12483 13140 13338 13870 14235 14820 16644 17082 18031 18980 19710 20805 22230 24966 25623 26676 27740 28470 33345 34164 36062 37449 39420 41610 42705 44460 49932 51246 54093 56940 62415 66690 72124 74898 83220 85410 90155 102492 108186 124830 128115 133380 149796 162279 170820 180310 187245 199081 216372 249660 256230 270465 324558 360620 374490 398162 486837 512460 540930 597243 649116 748980 796324 811395 973674 995405 1081860 1194486 1622790 1791729 1947348 1990810 2388972 2434185 2588053 2986215 3245580 3583458 3782539 3981620 4868370 5176106 5375187 5972430 7166916 7565078 7764159 8958645 9736740 10352212 10750374 11347617 11944860 12940265 14532913 15130156 15528318 17917290 18912695 21500748 22695234 23292477 25880530 26875935 29065826 31056636 34042851 35834580 37825390 38820795 43598739 45390468 46584954 49173007 51761060 53751870 56738085 58131652 68085702 69877431 72664565 75650780 77641590 87197478 93169908 98346014 102128553 107503740 113476170 116462385 130796217 136171404 139754862 145329130 147519021 155283180 170214255 174394956 188927869 196692028 204257106 217993695 226952340 232924770 245865035 261592434 276125347 279509724 290658260 295038042 340428510 349387155 377855738 392388651 408514212 435987390 442557063 465849540 491730070 510642765 523184868 552250694 566783607 590076084 653981085 680857020 698774310 737595105 755711476 784777302 828376041 871974780 885114126 944639345 983460140 1021285530 1104501388 1133567214 1307962170 1327671189 1380626735 1397548620 1475190210 1569554604 1656752082 1700350821 1770228252 1889278690 1961943255 2042571060 2212785315 2267134428 2485128123 2615924340 2655342378 2761253470 2833918035 2950380420 3313504164 3400701642 3589629511 3778557380 3923886510 4141880205 4425570630 4970256246 5101052463 5310684756 5522506940 5667836070 6638355945 6801403284 7179259022 7455384369 7847773020 8283760410 8501754105 8851141260 9940512492 10202104926 10768888533 11335672140 12425640615 13276711890 14358518044 14910768738 16567520820 17003508210 17948147555 20404209852 21537777066 24851281230 25505262315 26553423780 29821537476 32306665599 34007016420 35896295110 37276921845 43075554132 49702562460 51010524630 53844442665 64613331198 71792590220 74553843690 96919996797 102021049260 107688885330 129226662396 149107687380 161533327995 193839993594 215377770660 323066655990 387679987188 484599983985 646133311980 969199967970 1938399935940
• Sum of all divisors σ(n): 6929964787200
• Sum of proper divisors (its aliquot sum) s(n): 4991564851260
• 1938399935940 is an abundant number, because the sum of its proper divisors (4991564851260) is greater than itself. Its abundance is 3053164915320

Bases of 1938399935940

• Binary: 11100001101010001101000111011110111000100₂
• Hexadecimal: 0x1C351A3BDC4
• Base-36: OQHL9UX0

Squares and roots of 1938399935940

• 1938399935940 squared (1938399935940²) is 3757394311652196103683600
• 1938399935940 cubed (1938399935940³) is 7283332893007937322940607838028584000
• The square root of 1938399935940 is 1392264.3197108801
• The cube root of 1938399935940 is 12468.5072531905

Scales and comparisons

• 1,938,399,935,940 seconds is equal to 61,635 years, 6 weeks, 2 days, 10 hours, 39 minutes.
• To count from 1 to 1,938,399,935,940 would take you about one hundred fifty-four thousand and eighty-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 1938399935940 cubic inches would be around 1039 feet tall.

Recreational maths with 1938399935940

• 1938399935940 backwards is 0495399938391
• The number of decimal digits it has is: 13
• The sum of 1938399935940's digits is 72
• More coming soon!