8420385403755

Names of 8420385403755

• Cardinal: 8420385403755 can be written as Eight trillion, four hundred twenty billion, three hundred eighty-five million, four hundred three thousand, seven hundred fifty-five.

Scientific notation

• Scientific notation: 8.420385403755 × 10¹²

Factors of 8420385403755

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3573

Divisors of 8420385403755

• Number of divisors d(n): 384
• Complete list of divisors:
  1 3 5 9 13 15 19 27 31 39 45 57 65 81 93 95 117 135 155 171 195 243 247 279 281 285 351 403 405 465 513 585 589 741 837 843 855 1053 1209 1215 1235 1395 1405 1539 1755 1767 2015 2223 2511 2529 2565 2945 3159 3221 3627 3653 3705 4185 4215 4617 5265 5301 5339 6045 6669 7533 7587 7657 7695 8711 8835 9663 10881 10959 11115 12555 12645 15795 15903 16017 16105 18135 18265 20007 22761 22971 23085 26133 26505 26695 28989 32643 32877 33345 37665 37935 38285 41873 43555 47709 48051 48315 54405 54795 60021 61199 68283 68913 69407 78399 79515 80085 86967 97929 98631 99851 100035 113243 113805 114855 125619 130665 143127 144153 144945 163215 164385 165509 183597 206739 208221 209365 235197 238545 240255 260901 295893 299553 300105 305995 339729 341415 344565 347035 376857 391995 432459 434835 489645 493155 496527 499255 550791 566215 620217 624663 628095 705591 715635 720765 782703 795587 827545 887679 898659 905101 917985 1019187 1033695 1041105 1130571 1175985 1297377 1298063 1304505 1479465 1489581 1497765 1652373 1698645 1860651 1873989 1884285 1897169 2116773 2151617 2162295 2386761 2482635 2695977 2715303 2753955 3057561 3101085 3123315 3391713 3527955 3894189 3913515 3977935 4438395 4468743 4493295 4525505 4957119 5095935 5621967 5652855 5691507 6454851 6486885 6490315 7160283 7447905 8087931 8145909 8261865 9172683 9303255 9369945 9485845 10175139 10583865 10758085 11682567 11766313 11933805 13406229 13479885 13576515 14871357 15287805 16865901 16958565 17074521 17196919 19364553 19470945 21480849 22343715 24263793 24437727 24663197 24785595 27518049 28058131 28109835 28457535 32274255 35047701 35298939 35801415 40218687 40439655 40729545 45863415 50875695 51223563 51590757 58093659 58412835 58831565 64442547 67031145 73313181 73989591 74356785 84174393 84329505 85372605 85984595 96822765 105143103 105896817 107404245 121318965 122188635 123315985 137590245 140290655 153670689 154772271 174280977 175238505 176494695 193327641 201093435 219939543 221968773 223559947 252523179 256117815 257953785 290468295 315429309 317690451 322212735 364755703 366565905 369947955 420871965 461012067 464316813 522842931 525715515 529484085 533104489 665906319 670679841 757569537 768353445 773861355 871404885 953071353 966638205 1094267109 1099697715 1109843865 1117799735 1262615895 1392950439 1577146545 1588452255 1599313467 1823778515 1997718957 2012039523 2272708611 2305060335 2321584065 2614214655 2665522445 2859214059 3282801327 3329531595 3353399205 3787847685 4178851317 4765356765 4797940401 5471335545 5993156871 6036118569 6818125833 6930358357 6964752195 7996567335 9848403981 9988594785 10060197615 11363543055 14296070295 14393821203 16414006635 18108355707 20791075071 20894256585 23989702005 29545211943 29965784355 30180592845 34090629165 34651791785 43181463609 49242019905 54325067121 62373225213 71969106015 88635635829 90541778535 103955375355 129544390827 147726059715 187119675639 215907318045 271625335605 311866126065 443178179145 561359026917 647721954135 935598378195 1684077080751 2806795134585 8420385403755
• Sum of all divisors σ(n): 17780144578560
• Sum of proper divisors (its aliquot sum) s(n): 9359759174805
• 8420385403755 is an abundant number, because the sum of its proper divisors (9359759174805) is greater than itself. Its abundance is 939373771050

Bases of 8420385403755

• Binary: 1111010100010000110000101001011001101101011₂
• Hexadecimal: 0x7A88614B36B
• Base-36: 2ZG9S27OR

Squares and roots of 8420385403755

• 8420385403755 squared (8420385403755²) is 70902890347770254368100025
• 8420385403755 cubed (8420385403755³) is 597029662968405925691312981401850593875
• The square root of 8420385403755 is 2901790.0344020413
• The cube root of 8420385403755 is 20344.3580185363

Scales and comparisons

• 8,420,385,403,755 seconds is equal to 267,742 years, 10 weeks, 6 days, 9 hours, 29 minutes, 15 seconds.
• To count from 1 to 8,420,385,403,755 would take you about six hundred sixty-nine thousand, three hundred fifty-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 8420385403755 cubic inches would be around 1695.4 feet tall.

Recreational maths with 8420385403755

• 8420385403755 backwards is 5573045830248
• The number of decimal digits it has is: 13
• The sum of 8420385403755's digits is 54
• More coming soon!