138789399840

Names of 138789399840

• Cardinal: 138789399840 can be written as One hundred thirty-eight billion, seven hundred eighty-nine million, three hundred ninety-nine thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.3878939984 × 10¹¹

Factors of 138789399840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 354

Divisors of 138789399840

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 20 21 24 26 28 30 32 35 39 40 42 48 52 56 60 65 70 78 80 84 91 96 104 105 112 120 127 130 140 156 160 168 182 195 197 208 210 224 240 254 260 273 280 312 336 364 381 390 394 416 420 455 480 508 520 546 560 591 624 635 672 728 762 780 788 840 889 910 985 1016 1040 1092 1120 1182 1248 1270 1365 1379 1456 1524 1560 1576 1651 1680 1778 1820 1905 1970 2032 2080 2184 2364 2540 2561 2667 2730 2758 2912 2955 3048 3120 3152 3302 3360 3556 3640 3810 3940 4064 4137 4368 4445 4728 4953 5080 5122 5334 5460 5516 5910 6096 6240 6304 6604 6895 7112 7280 7620 7683 7880 8255 8274 8736 8890 9456 9906 10160 10244 10668 10920 11032 11557 11820 12192 12805 13208 13335 13790 14224 14560 15240 15366 15760 16129 16510 16548 17780 17927 18912 19812 20320 20488 20685 21336 21840 22064 23114 23640 24765 25019 25610 26416 26670 27580 28448 30480 30732 31520 32258 33020 33096 34671 35560 35854 38415 39624 40976 41370 42672 43680 44128 46228 47280 48387 49530 50038 51220 52832 53340 53781 55160 57785 60960 61464 64516 66040 66192 69342 71120 71708 75057 76830 79248 80645 81952 82740 85344 89635 92456 94560 96774 99060 100076 102440 106680 107562 110320 112903 115570 122928 125095 129032 132080 132384 138684 142240 143416 150114 153660 158496 161290 165480 173355 175133 179270 184912 193548 198120 200152 204880 209677 213360 215124 220640 225806 231140 241935 245856 250190 258064 264160 268905 277368 286832 300228 307320 322580 325247 330960 338709 346710 350266 358540 369824 375285 387096 396240 400304 409760 419354 426720 430248 451612 462280 483870 500380 516128 525399 537810 554736 564515 573664 600456 614640 629031 645160 650494 661920 677418 693420 700532 717080 750570 774192 792480 800608 838708 860496 875665 903224 924560 967740 975741 1000760 1048385 1050798 1075620 1109472 1129030 1200912 1229280 1258062 1290320 1300988 1354836 1386840 1401064 1434160 1467739 1501140 1548384 1626235 1677416 1693545 1720992 1751330 1806448 1849120 1935480 1951482 2001520 2096770 2101596 2151240 2258060 2276729 2401824 2516124 2580640 2601976 2626995 2709672 2773680 2802128 2868320 2935478 3002280 3145155 3177413 3252470 3354832 3387090 3502660 3612896 3870960 3902964 4003040 4193540 4203192 4302480 4403217 4516120 4553458 4878705 5032248 5203952 5253990 5419344 5547360 5604256 5870956 6004560 6290310 6354826 6504940 6709664 6774180 6830187 7005320 7338695 7741920 7805928 8387080 8406384 8604960 8806434 9032240 9106916 9532239 9757410 10064496 10407904 10507980 10838688 11383645 11741912 12009120 12580620 12709652 13009880 13548360 13660374 14010640 14677390 15611856 15887065 16774160 16812768 17612868 18064480 18213832 19064478 19514820 20128992 21015960 22016085 22241891 22767290 23483824 25161240 25419304 26019760 27096720 27320748 28021280 29354780 31223712 31774130 33548320 34150935 35225736 36427664 38128956 39029640 41306369 42031920 44032170 44483782 45534580 46967648 47661195 50322480 50838608 52039520 54193440 54641496 58709560 63548260 66725673 68301870 70451472 72855328 76257912 78059280 82612738 84063840 88064340 88967564 91069160 95322390 100644960 101677216 109282992 111209455 117419120 123919107 127096520 133451346 136603740 140902944 152515824 156118560 165225476 176128680 177935128 182138320 190644780 206531845 218565984 222418910 234838240 247838214 254193040 266902692 273207480 289144583 305031648 330450952 333628365 352257360 355870256 364276640 381289560 413063690 444837820 495676428 508386080 533805384 546414960 578289166 619595535 660901904 667256730 704514720 711740512 762579120 826127380 867433749 889675640 991352856 1067610768 1092829920 1156578332 1239191070 1321803808 1334513460 1445722915 1525158240 1652254760 1734867498 1779351280 1982705712 2135221536 2313156664 2478382140 2669026920 2891445830 3304509520 3469734996 3558702560 3965411424 4337168745 4626313328 4956764280 5338053840 5782891660 6609019040 6939469992 8674337490 9252626656 9913528560 10676107680 11565783320 13878939984 17348674980 19827057120 23131566640 27757879968 34697349960 46263133280 69394699920 138789399840
• Sum of all divisors σ(n): 545099030784
• Sum of proper divisors (its aliquot sum) s(n): 406309630944
• 138789399840 is an abundant number, because the sum of its proper divisors (406309630944) is greater than itself. Its abundance is 267520231104

Bases of 138789399840

• Binary: 10000001010000011111100010110100100000₂
• Hexadecimal: 0x20507E2D20
• Base-36: 1RRBMIAO

Squares and roots of 138789399840

• 138789399840 squared (138789399840²) is 19262497507947392025600
• 138789399840 cubed (138789399840³) is 2673430468547514169526225915904000
• The square root of 138789399840 is 372544.4937722205
• The cube root of 138789399840 is 5177.4840054581

Scales and comparisons

• 138,789,399,840 seconds is equal to 4,413 years, 3 weeks, 5 days, 19 hours, 4 minutes.
• To count from 1 to 138,789,399,840 would take you about eight thousand, eight hundred twenty-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 138789399840 cubic inches would be around 431.5 feet tall.

Recreational maths with 138789399840

• 138789399840 backwards is 048993987831
• The number of decimal digits it has is: 12
• The sum of 138789399840's digits is 69
• More coming soon!