18338638422620880

Names of 18338638422620880

• Cardinal: 18338638422620880 can be written as Eighteen quadrillion, three hundred thirty-eight trillion, six hundred thirty-eight billion, four hundred twenty-two million, six hundred twenty thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 1.833863842262088 × 10¹⁶

Factors of 18338638422620880

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 4651036

Divisors of 18338638422620880

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 18 20 21 24 26 27 28 30 35 36 39 40 42 45 48 52 54 56 60 63 65 70 72 78 80 84 90 91 104 105 108 112 117 120 126 130 135 140 144 156 168 180 182 189 195 208 210 216 234 240 252 260 270 273 280 312 315 336 351 360 364 378 390 420 432 455 468 504 520 540 546 560 585 624 630 702 720 728 756 780 819 840 910 936 945 1008 1040 1080 1092 1170 1260 1365 1404 1456 1512 1560 1638 1680 1755 1820 1872 1890 2160 2184 2340 2457 2520 2730 2808 3024 3120 3276 3510 3640 3780 4095 4368 4680 4914 5040 5460 5616 6552 7020 7280 7560 8190 9360 9828 10920 12285 13104 14040 15120 16380 19656 20147 21840 24570 28080 32760 39312 40294 49140 60441 65520 80588 98280 100735 120882 141029 161176 181323 196560 201470 241764 261911 282058 302205 322352 362646 402940 423087 483528 523822 543969 564116 604410 705145 725292 785733 805880 846174 906615 967056 1047644 1087938 1128232 1208820 1269261 1309555 1410290 1450584 1571466 1611760 1692348 1813230 1833377 2095288 2115435 2175876 2256464 2357199 2417640 2538522 2619110 2719845 2820580 2901168 3142932 3384696 3626460 3666754 3807783 3928665 4190576 4230870 4351752 4630859 4714398 4835280 5077044 5238220 5439690 5500131 5641160 6285864 6346305 6769392 7071597 7252920 7333508 7615566 7857330 8461740 8703504 9166885 9261718 9428796 10154088 10476440 10879380 11000262 11282320 11785995 12571728 12692610 13892577 14143194 14505840 14667016 15231132 15714660 16500393 16923480 18333770 18523436 18857592 19038915 20308176 20952880 21758760 22000524 23154295 23571990 25385220 27500655 27785154 28286388 29334032 30462264 31429320 32416013 33000786 33846960 35357985 36667540 37046872 37715184 38077830 41677731 43517520 44001048 46308590 47143980 49501179 50770440 55001310 55570308 56572776 60201167 60924528 62858640 64832026 66001572 69462885 70715970 73335080 74093744 76155660 82501965 83355462 88002096 92617180 94287960 97248039 99002358 101540880 110002620 111140616 113145552 120402334 125033193 129664052 132003144 138925770 141431940 146670160 152311320 162080065 165003930 166710924 180603501 185234360 188575920 194496078 198004716 208388655 220005240 222281232 240804668 247505895 250066386 259328104 264006288 277851540 282863880 291744117 301005835 304622640 324160130 330007860 333421848 361207002 370468720 388992156 396009432 416777310 421408169 440010480 481609336 486240195 495011790 500132772 518656208 541810503 555703080 565727760 583488234 602011670 625165965 648320260 660015720 666843696 722414004 777984312 792018864 833554620 842816338 875232351 903017505 963218672 972480390 990023580 1000265544 1083621006 1111406160 1166976468 1204023340 1250331930 1264224507 1296640520 1320031440 1444828008 1458720585 1555968624 1625431509 1667109240 1685632676 1750464702 1806035010 1944960780 1980047160 2000531088 2107040845 2167242012 2333952936 2408046680 2500663860 2528449014 2593281040 2709052515 2889656016 2917441170 3250863018 3334218480 3371265352 3500929404 3612070020 3792673521 3889921560 3960094320 4214081690 4334484024 4376161755 4667905872 4816093360 5001327720 5056898028 5418105030 5834882340 6321122535 6501726036 6742530704 7001858808 7224140040 7585347042 7779843120 8127157545 8428163380 8668968048 8752323510 10002655440 10113796056 10836210060 11378020563 11669764680 12642245070 13003452072 14003717616 14448280080 15170694084 16254315090 16856326760 17504647020 18963367605 20227592112 21672420120 22756041126 23339529360 25284490140 26006904144 30341388168 32508630180 33712653520 35009294040 37926735210 43344840240 45512082252 50568980280 56890102815 60682776336 65017260360 70018588080 75853470420 91024164504 93297916273 101137960560 113780205630 130034520720 151706940840 182048329008 186595832546 227560411260 279893748819 303413881680 373191665092 455120822520 466489581365 559787497638 653085413911 746383330184 839681246457 910241645040 932979162730 1119574995276 1212872911549 1306170827822 1399468744095 1492766660368 1679362492914 1865958325460 1959256241733 2239149990552 2425745823098 2519043739371 2612341655644 2798937488190 3265427069555 3358724985828 3638618734647 3731916650920 3918512483466 4198406232285 4478299981104 4851491646196 5038087478742 5224683311288 5597874976380 5877768725199 6064364557745 6530854139110 6717449971656 7277237469294 7463833301840 7837024966932 8396812464570 8490110380843 9702983292392 9796281208665 10076174957484 10449366622576 10915856203941 11195749952760 11755537450398 12128729115490 12595218696855 13061708278220 13434899943312 14554474938588 15674049933864 16793624929140 16980220761686 17633306175597 18193093673235 19405966584784 19592562417330 20152349914968 21831712407882 22391499905520 23511074900796 24257458230980 25190437393710 25470331142529 26123416556440 29108949877176 29388843625995 31348099867728 32747568611823 33587249858280 33960441523372 35266612351194 36386187346470 39185124834660 40304699829936 42450551904215 43663424815764 47022149801592 48514916461960 50380874787420 50940662285058 52246833112880 54579281019705 58217899754352 58777687251990 65495137223646 67174499716560 67920883046744 70533224702388 72772374692940 76410993427587 78370249669320 84901103808430 87326849631528 88166530877985 94044299603184 97029832923920 100761749574840 101881324570116 109158562039410 117555374503980 127351655712645 130990274447292 135841766093488 141066449404776 145544749385880 152821986855174 156740499338640 163737843059115 169802207616860 174653699263056 176333061755970 201523499149680 203762649140232 218317124078820 229232980282761 235110749007960 254703311425290 261980548894584 282132898809552 291089498771760 305643973710348 327475686118230 339604415233720 352666123511940 382054967137935 407525298280464 436634248157640 458465960565522 470221498015920 509406622850580 523961097789168 611287947420696 654951372236460 679208830467440 705332247023880 764109934275870 873268496315280 916931921131044 1018813245701160 1146164901413805 1222575894841392 1309902744472920 1410664494047760 1528219868551740 1833863842262088 2037626491402320 2292329802827610 2619805488945840 3056439737103480 3667727684524176 4584659605655220 6112879474206960 9169319211310440 18338638422620880
• Sum of all divisors σ(n): 77747163263078400
• Sum of proper divisors (its aliquot sum) s(n): 59408524840457520
• 18338638422620880 is an abundant number, because the sum of its proper divisors (59408524840457520) is greater than itself. Its abundance is 41069886417836640

Bases of 18338638422620880

• Binary: 1000001001001101110010011111100110110000011101011010000₂
• Hexadecimal: 0x4126E4FCD83AD0
• Base-36: 50KI66R7RO0

Squares and roots of 18338638422620880

• 18338638422620880 squared (18338638422620880²) is 336305659195626837731288211974400
• 18338638422620880 cubed (18338638422620880³) is 6167387883469765398474742106680014545447465472000
• The square root of 18338638422620880 is 135420229.0007696007
• The cube root of 18338638422620880 is 263707.4277511677

Scales and comparisons

• 18,338,638,422,620,880 seconds is equal to 583,111,976 years, 36 weeks, 5 days, 1 hour, 48 minutes.
• To count from 1 to 18,338,638,422,620,880 would take you about one billion, seven hundred forty-nine million, three hundred thirty-five thousand, nine hundred thirty 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 18338638422620880 cubic inches would be around 21975.6 feet tall.

Recreational maths with 18338638422620880

• 18338638422620880 backwards is 08802622483683381
• 18338638422620880 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 18338638422620880's digits is 72
• More coming soon!