18420038137253940

Names of 18420038137253940

• Cardinal: 18420038137253940 can be written as Eighteen quadrillion, four hundred twenty trillion, thirty-eight billion, one hundred thirty-seven million, two hundred fifty-three thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.842003813725394 × 10¹⁶

Factors of 18420038137253940

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 40357

Divisors of 18420038137253940

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 661 977 1151 1322 1954 1983 2302 2644 2931 3305 3453 3908 3966 4604 4885 5755 5862 6610 6906 7271 7932 9770 9915 10747 11510 11724 12661 13220 13812 14542 14655 17265 19540 19830 21494 21813 23020 25322 29084 29310 32241 34530 36355 37547 37983 39660 42988 43626 50644 53735 58620 63305 64482 69060 72710 75094 75966 87252 107470 109065 112641 126610 128964 145420 150188 151932 161205 187735 189915 214940 218130 225282 253220 322410 375470 379830 413017 436260 450564 563205 644820 645797 750940 759660 760811 826034 1124527 1126410 1239051 1291594 1521622 1652068 1937391 2065085 2249054 2252820 2282433 2478102 2583188 3043244 3228985 3373581 3804055 3874782 4130170 4498108 4564866 4956204 5622635 6195255 6457970 6747162 7103767 7608110 7749564 8260340 8368921 9129732 9686955 11245270 11412165 12369797 12390510 12915940 13494324 14207534 15216220 16737842 16867905 19373910 21311301 22490540 22824330 24739594 24781020 24818567 25106763 28415068 33475684 33735810 35518835 36683419 37109391 38747820 41844605 42622602 43216597 45648660 49479188 49637134 50213526 61848985 67471620 71037670 73366838 74218782 74455701 83689210 85245204 86433194 99274268 100427052 106556505 110050257 123697970 124092835 125533815 129649791 142075340 146733676 148437564 148911402 167378420 172866388 183417095 185546955 213113010 216082985 220100514 247395940 248185670 251067630 259299582 273004237 297822804 366834190 371093910 372278505 403517609 426226020 432165970 440201028 475382567 496371340 502135260 518599164 546008474 550251285 648248955 733668380 742187820 743312347 744557010 807035218 819012711 864331940 950765134 1092016948 1100502570 1210552827 1296497910 1365021185 1426147701 1486624694 1489114020 1614070436 1638025422 1901530268 2017588045 2201005140 2229937041 2376912835 2421105654 2592995820 2730042370 2852295402 2973249388 3276050844 3716561735 4035176090 4095063555 4459874082 4753825670 4842211308 5460084740 5704590804 6052764135 7130738505 7433123470 8070352180 8176435817 8190127110 8919748164 9507651340 11149685205 12105528270 14261477010 14866246940 16352871634 16380254220 22299370410 24211056540 24247739959 24529307451 28522954020 28566170617 32705743268 40882179085 42222615269 44598740820 48495479918 49058614902 57132341234 72743219877 81764358170 84445230538 85698511851 96990959836 98117229804 114264682468 121238699795 122646537255 126667845807 142830853085 145486439754 163528716340 168890461076 171397023702 211113076345 242477399590 245293074510 253335691614 266725139549 285661706170 290972879508 314227876787 342794047404 363716099385 422226152690 428492559255 464448767959 484954799180 490586149020 506671383228 533450279098 571323412340 628455753574 633339229035 727432198770 800175418647 844452305380 856985118510 928897535918 942683630361 1066900558196 1256911507148 1266678458070 1333625697745 1393346303877 1454864397540 1571139383935 1600350837294 1713970237020 1857795071836 1885367260722 2322243839795 2533356916140 2667251395490 2786692607754 3142278767870 3200701674588 3770734521444 4000877093235 4644487679590 4713418151805 5334502790980 5573385215508 6284557535740 6966731519385 8001754186470 9288975359180 9426836303610 13933463038770 16003508372940 18853672607220 27866926077540 27909148692809 55818297385618 83727446078427 111636594771236 139545743464045 167454892156854 279091486928090 307000635620899 334909784313708 418637230392135 558182973856180 614001271241798 837274460784270 921001906862697 1228002542483596 1535003178104495 1674548921568540 1842003813725394 3070006356208990 3684007627450788 4605009534313485 6140012712417980 9210019068626970 18420038137253940
• Sum of all divisors σ(n): 56458152215248896
• Sum of proper divisors (its aliquot sum) s(n): 38038114077994956
• 18420038137253940 is an abundant number, because the sum of its proper divisors (38038114077994956) is greater than itself. Its abundance is 19618075940741016

Bases of 18420038137253940

• Binary: 1000001011100001110110101010101111010111001000000110100₂
• Hexadecimal: 0x4170ED55EB9034
• Base-36: 51DCWP7MOFO

Squares and roots of 18420038137253940

• 18420038137253940 squared (18420038137253940²) is 339297804977889599738084045523600
• 18420038137253940 cubed (18420038137253940³) is 6249878507579276153547258614813445196053462984000
• The square root of 18420038137253940 is 135720441.1179610777
• The cube root of 18420038137253940 is 264097.0246051021

Scales and comparisons

• 18,420,038,137,253,940 seconds is equal to 585,700,235 years, 43 weeks, 6 days, 20 hours, 19 minutes.
• To count from 1 to 18,420,038,137,253,940 would take you about one billion, seven hundred fifty-seven million, one hundred thousand, seven hundred 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 18420038137253940 cubic inches would be around 22008.1 feet tall.

Recreational maths with 18420038137253940

• 18420038137253940 backwards is 04935273183002481
• 18420038137253940 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 18420038137253940's digits is 60
• More coming soon!