6440987778918

Names of 6440987778918

• Cardinal: 6440987778918 can be written as Six trillion, four hundred forty billion, nine hundred eighty-seven million, seven hundred seventy-eight thousand, nine hundred eighteen.

Scientific notation

• Scientific notation: 6.440987778918 × 10¹²

Factors of 6440987778918

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 22816

Divisors of 6440987778918

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 6 7 11 14 17 21 22 33 34 42 49 51 66 67 77 98 102 119 121 134 147 154 187 201 231 238 242 294 343 357 363 374 402 462 469 539 561 686 714 726 737 833 847 938 1029 1078 1122 1139 1309 1407 1474 1617 1666 1694 2057 2058 2211 2278 2499 2541 2618 2814 3234 3283 3417 3773 3927 4114 4422 4998 5082 5159 5831 5929 6171 6566 6834 7546 7854 7973 8107 9163 9849 10318 11319 11662 11858 12342 12529 14399 15477 15946 16214 17493 17787 18326 19698 22638 22709 22981 23919 24321 25058 27489 28798 30954 34986 35574 36113 37587 41503 43197 45418 45962 47838 48642 54978 55811 56749 64141 68127 68943 72226 75174 83006 86394 87703 100793 108339 111622 113498 124509 128282 136254 137819 137886 158963 167433 170247 175406 192423 201586 216678 249018 249799 252791 263109 275638 302379 317926 334866 340494 384846 386053 390677 397243 413457 476889 499598 505582 526218 604758 613921 705551 749397 758373 772106 781354 794486 826914 953778 964733 1112741 1158159 1172031 1191729 1227842 1411102 1498794 1516746 1521503 1748593 1841763 1929466 2116653 2225482 2316318 2344062 2383458 2702371 2747789 2780701 2894199 3043006 3338223 3497186 3683526 4233306 4246583 4297447 4564509 5245779 5404742 5495578 5561402 5788398 6676446 6753131 7789187 8107113 8243367 8342103 8493166 8594894 9129018 10491558 10650521 12240151 12739749 12892341 13506262 15578374 16214226 16486734 16684206 16736533 18916597 19234523 20259393 21301042 23367561 24480302 25479498 25784682 25865551 29726081 31951563 33473066 36720453 37833194 38469046 40518786 46712413 46735122 47271917 50209599 51731102 56749791 57703569 59452162 63903126 73440906 74553647 77596653 85681057 89178243 93424826 94543834 100419198 113499582 115407138 117155731 132416179 134641661 140137239 141815751 149107294 155193306 171362114 178356486 181058857 184101863 208082567 223660941 234311462 257043171 264832358 269283322 280274478 283631502 284521061 326986891 351467193 362117714 368203726 397248537 403924983 416165134 447321882 514086342 521875529 543176571 552305589 569042122 624247701 653973782 702934386 794497074 807849966 820090117 853563183 942491627 980960673 1043751058 1086353142 1104611178 1248495402 1267411999 1288713041 1456577969 1565626587 1640180234 1707126366 1884983254 1961921346 1991647427 2288908237 2460270351 2534823998 2577426082 2827474881 2913155938 3129731671 3131253174 3802235997 3866139123 3983294854 4369733907 4577816474 4920540702 5654949762 5740630819 5974942281 6259463342 6866724711 7604471994 7732278246 8739467814 8871883993 9020991287 9389195013 11481261638 11949884562 13733449422 13941531989 16022357659 17221892457 17743767986 18041982574 18778390026 21908121697 26615651979 27062973861 27883063978 32044715318 34443784914 41824595967 43816243394 48067072977 53231303958 54125947722 63146939009 65724365091 83649191934 96134145954 97590723923 126293878018 131448730182 153356851879 189440817027 195181447846 292772171769 306713703758 378881634054 460070555637 585544343538 920141111274 1073497963153 2146995926306 3220493889459 6440987778918
• Sum of all divisors σ(n): 17745630336000
• Sum of proper divisors (its aliquot sum) s(n): 11304642557082
• 6440987778918 is an abundant number, because the sum of its proper divisors (11304642557082) is greater than itself. Its abundance is 4863654778164

Bases of 6440987778918

• Binary: 1011101101110101000110010011101111101100110₂
• Hexadecimal: 0x5DBA8C9DF66
• Base-36: 2A6Y5TLK6

Squares and roots of 6440987778918

• 6440987778918 squared (6440987778918²) is 41486323568171030845250724
• 6440987778918 cubed (6440987778918³) is 267212903094827404523501928945591436632
• The square root of 6440987778918 is 2537910.1203387799
• The cube root of 6440987778918 is 18605.9061088851

Scales and comparisons

• 6,440,987,778,918 seconds is equal to 204,803 years, 25 weeks, 2 days, 15 hours, 55 minutes, 18 seconds.
• To count from 1 to 6,440,987,778,918 would take you about five hundred twelve thousand and eight 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 6440987778918 cubic inches would be around 1550.5 feet tall.

Recreational maths with 6440987778918

• 6440987778918 backwards is 8198777890446
• The number of decimal digits it has is: 13
• The sum of 6440987778918's digits is 78
• More coming soon!