18420916947587340

Names of 18420916947587340

• Cardinal: 18420916947587340 can be written as Eighteen quadrillion, four hundred twenty trillion, nine hundred sixteen billion, nine hundred forty-seven million, five hundred eighty-seven thousand, three hundred forty.

Scientific notation

• Scientific notation: 1.842091694758734 × 10¹⁶

Factors of 18420916947587340

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 4787

Divisors of 18420916947587340

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 76 95 109 114 190 218 228 285 327 361 380 436 545 570 654 722 1083 1090 1140 1308 1444 1635 1805 2071 2166 2180 3270 3610 4142 4332 4649 5415 6213 6540 6859 7220 8284 9298 10355 10830 12426 13718 13947 18596 20577 20710 21660 23245 24852 27436 27894 31065 34295 39349 41154 41420 46490 55788 62130 68590 69735 78698 82308 88331 92980 102885 118047 124260 130321 137180 139470 157396 176662 196745 205770 236094 260642 264993 278940 353324 390963 393490 411540 441655 472188 506741 521284 529986 590235 651605 747631 781926 786980 883310 1013482 1059972 1180470 1303210 1324965 1495262 1520223 1563852 1678289 1766620 1954815 2026964 2242893 2360940 2533705 2606420 2649930 2990524 3040446 3356578 3738155 3909630 4485786 5034867 5067410 5299860 6080892 6713156 7476310 7601115 7819260 8391445 8971572 9628079 10069734 10134820 11214465 14204989 14952620 15202230 16782890 19256158 20139468 21613201 22428930 25174335 28409978 28884237 30404460 31887491 33565780 38512316 42614967 43226402 44857860 48140395 50348670 56819956 57768474 63774982 64839603 71024945 85229934 86452804 95662473 96280790 100697340 108066005 115536948 127549964 129679206 142049890 144421185 159437455 170459868 182933501 191324946 192561580 213074835 216132010 259358412 284099780 288842370 318874910 324198015 365867002 382649892 410650819 426149670 432264020 478312365 548800503 577684740 605862329 637749820 648396030 731734004 821301638 852299340 914667505 956624730 1097601006 1211724658 1231952457 1296792060 1642603276 1817586987 1829335010 1913249460 2053254095 2195202012 2355838909 2423449316 2463904914 2744002515 3029311645 3475736519 3635173974 3658670020 4106508190 4711677818 4927809828 5488005030 6058623290 6159762285 6951473038 7067516727 7270347948 7802365561 8213016380 9087934935 9423355636 10427209557 10976010060 11779194545 12117246580 12319524570 13902946076 14135033454 15604731122 17378682595 18175869870 20854419114 23407096683 23558389090 24639049140 28270066908 31209462244 34757365190 35337583635 36351739740 39011827805 41708838228 44760939271 46814193366 47116778180 52136047785 66038993861 69514730380 70675167270 78023655610 89521878542 93628386732 104272095570 117035483415 132077987722 134282817813 141350334540 148244945659 156047311220 179043757084 198116981583 208544191140 223804696355 234070966830 264155975444 268565635626 296489891318 330194969305 396233963166 444734836977 447609392710 468141933660 537131271252 592979782636 660389938610 671414089065 741224728295 792467926332 850457846149 889469673954 895218785420 990584907915 1320779877220 1342828178130 1482449456590 1700915692298 1778939347908 1981169815830 2223674184885 2551373538447 2685656356260 2816653967521 2964898913180 3401831384596 3962339631660 4252289230745 4447348369770 5102747076894 5633307935042 8449961902563 8504578461490 8894696739540 10205494153788 11266615870084 12756867692235 14083269837605 16158699076831 16899923805126 17009156922980 25513735384470 28166539675210 32317398153662 33799847610252 42249809512815 48476097230493 51027470768940 56333079350420 64634796307324 80793495384155 84499619025630 96952194460986 161586990768310 168999238051260 193904388921972 242380486152465 307015282459789 323173981536620 484760972304930 614030564919578 921045847379367 969521944609860 1228061129839156 1535076412298945 1842091694758734 3070152824597890 3684183389517468 4605229236896835 6140305649195780 9210458473793670 18420916947587340
• Sum of all divisors σ(n): 54955328762075280
• Sum of proper divisors (its aliquot sum) s(n): 36534411814487940
• 18420916947587340 is an abundant number, because the sum of its proper divisors (36534411814487940) is greater than itself. Its abundance is 18113494866900600

Bases of 18420916947587340

• Binary: 1000001011100011011100111110011000110010001000100001100₂
• Hexadecimal: 0x4171B9F319110C
• Base-36: 51DO4F4M1HO

Squares and roots of 18420916947587340

• 18420916947587340 squared (18420916947587340²) is 339330181189910483528646928275600
• 18420916947587340 cubed (18420916947587340³) is 6250773085509104840065898584447209013446590904000
• The square root of 18420916947587340 is 135723678.6547849947
• The cube root of 18420916947587340 is 264101.2245150339

Scales and comparisons

• 18,420,916,947,587,340 seconds is equal to 585,728,179 years, 15 weeks, 2 days, 17 hours, 49 minutes.
• To count from 1 to 18,420,916,947,587,340 would take you about one billion, seven hundred fifty-seven million, one hundred eighty-four thousand, five hundred thirty-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 18420916947587340 cubic inches would be around 22008.4 feet tall.

Recreational maths with 18420916947587340

• 18420916947587340 backwards is 04378574961902481
• The number of decimal digits it has is: 17
• The sum of 18420916947587340's digits is 78
• More coming soon!