128984639784

Names of 128984639784

• Cardinal: 128984639784 can be written as One hundred twenty-eight billion, nine hundred eighty-four million, six hundred thirty-nine thousand, seven hundred eighty-four.

Scientific notation

• Scientific notation: 1.28984639784 × 10¹¹

Factors of 128984639784

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 7797

Divisors of 128984639784

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 13 14 17 21 22 24 26 28 33 34 39 41 42 44 51 52 56 66 68 77 78 82 84 88 91 102 104 119 123 132 136 143 154 156 164 168 182 187 204 221 231 238 246 264 273 286 287 308 312 328 357 364 374 408 429 442 451 462 476 492 533 546 561 572 574 616 663 697 714 728 748 858 861 884 902 924 952 984 1001 1066 1092 1122 1144 1148 1309 1326 1353 1394 1428 1496 1547 1599 1716 1722 1768 1804 1848 2002 2091 2132 2184 2244 2296 2431 2618 2652 2706 2788 2856 3003 3094 3157 3198 3432 3444 3608 3731 3927 4004 4182 4264 4488 4641 4862 4879 5236 5304 5412 5576 5863 6006 6188 6314 6396 6888 7293 7462 7667 7703 7854 8008 8364 9061 9282 9471 9724 9758 10472 10824 11193 11726 12012 12376 12628 12792 14586 14637 14924 15334 15406 15708 16728 17017 17589 18122 18564 18942 19448 19516 22386 23001 23109 23452 24024 25256 27183 29172 29274 29848 30668 30812 31416 34034 35178 36244 37128 37884 39032 41041 44772 46002 46218 46904 51051 53669 53921 54366 58344 58548 61336 61624 63427 68068 70356 72488 75768 82082 84733 89544 92004 92436 99671 100139 102102 107338 107842 108732 117096 123123 126854 130951 136136 140712 161007 161763 164164 169466 184008 184872 190281 199342 200278 204204 214676 215684 217464 246246 253708 254199 261902 299013 300417 315823 322014 323526 328328 338932 380562 392853 398684 400556 408408 429352 431368 492492 507416 508398 523804 593131 598026 600834 631646 644028 647052 677864 697697 700973 761124 785706 797368 801112 916657 947469 984984 1016796 1047608 1101529 1186262 1196052 1201668 1263292 1288056 1294104 1395394 1401946 1440461 1522248 1571412 1702363 1779393 1833314 1894938 2033592 2093091 2102919 2203058 2210761 2372524 2392104 2403336 2526584 2749971 2790788 2803892 2880922 3142824 3304587 3404726 3474053 3558786 3666628 3789876 4105699 4186182 4205838 4321383 4406116 4421522 4745048 5107089 5368991 5499942 5581576 5607784 5761844 6609174 6632283 6809452 6948106 7117572 7333256 7579752 7710703 8211398 8372364 8411676 8642766 8812232 8843044 10083227 10214178 10422159 10737982 10999884 11523688 11916541 12317097 13218348 13264566 13618904 13896212 14235144 15421406 16106973 16422796 16744728 16823352 17285532 17686088 18725993 20166454 20428356 20844318 21475964 21999768 23132109 23833082 24318371 24634194 26436696 26529132 27792424 28739893 30249681 30842812 32213946 32845592 34571064 35749623 37451986 37582937 40332908 40856712 41688636 42951928 45162689 46264218 47666164 48636742 49268388 53058264 56177979 57479786 59058901 60499362 61685624 64427892 69796883 71499246 72955113 74903972 75165874 80665816 83377272 86219679 90325378 92528436 95332328 97273484 98536776 112355958 112748811 114959572 118117802 120998724 128855784 131081951 135488067 139593766 142998492 145910226 149807944 150331748 172439358 177176703 180650756 185056872 194546968 209390649 224711916 225497622 229919144 236235604 241997448 262163902 270976134 279187532 285996984 291820452 300663496 316138823 344878716 354353406 361301512 393245853 413412307 418781298 449423832 450995244 472471208 488578181 524327804 541952268 558375064 583640904 632277646 689757432 708706812 767765713 786491706 826824614 837562596 901990488 948416469 977156362 1048655608 1083904536 1240236921 1264555292 1417413624 1465734543 1535531426 1572983412 1653649228 1675125192 1896832938 1954312724 2303297139 2480473842 2529110584 2931469086 3071062852 3145966824 3307298456 3793665876 3908625448 4606594278 4960947684 5374359991 5862938172 6142125704 7587331752 9213188556 9921895368 10748719982 11725876344 16123079973 18426377112 21497439964 32246159946 42994879928 64492319892 128984639784
• Sum of all divisors σ(n): 469665423360
• Sum of proper divisors (its aliquot sum) s(n): 340680783576
• 128984639784 is an abundant number, because the sum of its proper divisors (340680783576) is greater than itself. Its abundance is 211696143792

Bases of 128984639784

• Binary: 1111000001000000101010110100100101000₂
• Hexadecimal: 0x1E08156928
• Base-36: 1N964H0O

Squares and roots of 128984639784

• 128984639784 squared (128984639784²) is 16637037300208235566656
• 128984639784 cubed (128984639784³) is 2145922263240331132755341281442304
• The square root of 128984639784 is 359144.3160959115
• The cube root of 128984639784 is 5052.5737922059

Scales and comparisons

• 128,984,639,784 seconds is equal to 4,101 years, 16 weeks, 1 day, 18 hours, 36 minutes, 24 seconds.
• To count from 1 to 128,984,639,784 would take you about eight thousand, two hundred two 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 128984639784 cubic inches would be around 421 feet tall.

Recreational maths with 128984639784

• 128984639784 backwards is 487936489821
• The number of decimal digits it has is: 12
• The sum of 128984639784's digits is 69
• More coming soon!