18918384660450

Names of 18918384660450

• Cardinal: 18918384660450 can be written as Eighteen trillion, nine hundred eighteen billion, three hundred eighty-four million, six hundred sixty thousand, four hundred fifty.

Scientific notation

• Scientific notation: 1.891838466045 × 10¹³

Factors of 18918384660450

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 8172

Divisors of 18918384660450

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 5 6 9 10 11 15 18 22 25 27 30 33 45 50 54 55 61 66 75 79 81 90 99 110 121 122 135 150 158 162 165 183 198 225 237 242 270 275 297 305 330 363 366 395 405 450 474 495 549 550 594 605 610 671 675 711 726 790 810 825 869 891 915 990 1089 1098 1185 1210 1342 1350 1422 1485 1525 1647 1650 1738 1782 1815 1830 1975 2013 2025 2133 2178 2370 2475 2607 2745 2970 3025 3050 3267 3294 3355 3555 3630 3950 4026 4050 4266 4345 4455 4575 4819 4941 4950 5214 5445 5490 5925 6039 6050 6399 6534 6710 7110 7381 7425 7821 8011 8235 8690 8910 9075 9150 9559 9638 9801 9882 10065 10665 10890 11850 12078 12798 13035 13725 14457 14762 14850 15642 16022 16335 16470 16775 17775 18117 18150 19118 19602 20130 21330 21725 22143 22275 23463 24033 24095 24705 26070 27225 27450 28677 28914 30195 31995 32670 33550 35550 36234 36905 39105 40055 41175 43371 43450 44286 44550 46926 47795 48066 48190 49005 49410 50325 53009 53325 54351 54450 57354 60390 63990 65175 66429 70389 72099 72285 73810 78210 80110 81675 82350 86031 86742 88121 90585 95590 98010 100650 106018 106650 108702 110715 117315 120165 120475 123525 130113 130350 132858 140778 143385 144198 144570 150975 159027 159975 163350 172062 176242 181170 184525 195525 199287 200275 216297 216855 221430 234630 238975 240330 240950 245025 247050 258093 260226 264363 265045 271755 286770 301950 318054 319950 332145 351945 360495 361425 369050 390339 391050 398574 400550 430155 432594 433710 440605 452925 477081 477950 488671 490050 516186 528726 530090 543510 553575 583099 586575 597861 600825 632869 648891 650565 664290 703890 716925 720990 722850 774279 780678 793089 795135 860310 881210 905850 954162 969331 977342 996435 1081485 1084275 1107150 1166198 1173150 1195722 1201650 1265738 1290465 1297782 1301130 1321815 1325225 1358775 1431243 1433850 1466013 1548558 1586178 1590270 1660725 1749297 1759725 1802475 1898607 1938662 1951695 1992870 2150775 2162970 2168550 2203025 2379267 2385405 2443355 2580930 2643630 2650450 2717550 2862486 2907993 2915495 2932026 2989305 3164345 3244455 3252825 3321450 3498594 3519450 3604950 3797214 3871395 3903390 3965445 3975675 4293729 4301550 4398039 4406050 4758534 4770810 4846655 4886710 4982175 5247891 5375381 5407425 5695821 5815986 5830990 5978610 6328690 6452325 6488910 6505650 6609075 6961559 7137801 7156215 7330065 7742790 7930890 7951350 8587458 8723979 8746485 8796078 9493035 9693310 9758475 9964350 10495782 10750762 10814850 11391642 11896335 11927025 12216775 12904650 13194117 13218150 13923118 14275602 14312430 14539965 14577475 14660130 14946525 15743673 15821725 16126143 16222275 17087463 17447958 17492970 18986070 19356975 19516950 19827225 20884677 21468645 21990195 23792670 23854050 24233275 24433550 26171937 26239455 26388234 26876905 28479105 29079930 29154950 29893050 31487346 31643450 32252286 32444550 34174926 34807795 35689005 35781075 36650325 38605009 38713950 39582351 39654450 41769354 42937290 43619895 43732425 43980390 47231019 47465175 48378429 48466550 51262389 52343874 52478910 53753810 56958210 59129191 59481675 62654031 65970585 69615590 71378010 71562150 72699825 73300650 76577149 77210018 78515811 78718365 79164702 80630715 85437315 87239790 87464850 94462038 94930350 96756858 102524778 104423385 107343225 109950975 115815027 118258382 118963350 125308062 130859685 131197275 131941170 134384525 142395525 145135287 145399650 153154298 157031622 157436730 161261430 170874630 174038975 177387573 178445025 187962093 193025045 197911755 208846770 214686450 218099475 219901950 229731447 231630054 236155095 241892145 256311945 261719370 262394550 268769050 284791050 290270574 295645955 313270155 329852925 347445081 348077950 354775146 356890050 375924186 382885745 386050090 392579055 393591825 395823510 403153575 424655099 427186575 435405861 436198950 459462894 472310190 483784290 512623890 522116925 532162719 563886279 579075135 591291910 626540310 654298425 659705850 689194341 694890162 725676435 765771490 785158110 787183650 806307150 849310198 854373150 870811722 886937865 939810465 965125225 989558775 1042335243 1044233850 1064325438 1127772558 1148657235 1158150270 1180775475 1209460725 1273965297 1281559725 1308596850 1378388682 1451352870 1478229775 1566350775 1596488157 1737225405 1773875730 1879620930 1914428725 1930250450 1962895275 1979117550 2067583023 2084670486 2123275495 2177029305 2297314470 2361550950 2418921450 2547930594 2563119450 2660813595 2819431395 2895375675 2956459550 3127005729 3132701550 3192976314 3445971705 3474450810 3628382175 3821895891 3828857450 3925790550 4135166046 4246550990 4354058610 4434689325 4671206089 4699052325 4789464471 5211676215 5321627190 5638862790 5743286175 5790751350 6202749069 6254011458 6369826485 6891943410 7256764350 7643791782 7982440785 8686127025 8869378650 9342412178 9398104650 9578928942 10337915115 10423352430 10616377475 10885146525 11465687673 11486572350 12405498138 12739652970 13304067975 14013618267 14097156975 15635028645 15964881570 17229858525 17372254050 19109479455 20675830230 21232754950 21770293050 22931375346 23356030445 23947322355 26058381075 26608135950 28027236534 28194313950 31013745345 31270057290 31849132425 34397063019 34459717050 38218958910 39912203925 42040854801 46712060890 47894644710 51689575575 52116762150 57328438365 62027490690 63698264850 68794126038 70068091335 78175143225 79824407850 84081709602 95547397275 103379151150 114656876730 116780152225 119736611775 126122564403 140136182670 155068726725 156350286450 171985315095 191094794550 210204274005 233560304450 239473223550 252245128806 286642191825 310137453450 343970630190 350340456675 378367693209 420408548010 573284383650 630612822015 700680913350 756735386418 859926575475 1051021370025 1261225644030 1719853150950 1891838466045 2102042740050 3153064110075 3783676932090 6306128220150 9459192330225 18918384660450
• Sum of all divisors σ(n): 59476112868480
• Sum of proper divisors (its aliquot sum) s(n): 40557728208030
• 18918384660450 is an abundant number, because the sum of its proper divisors (40557728208030) is greater than itself. Its abundance is 21639343547580

Bases of 18918384660450

• Binary: 100010011010011000111100110001110111111100010₂
• Hexadecimal: 0x1134C798EFE2
• Base-36: 6PEZHRO4I

Squares and roots of 18918384660450

• 18918384660450 squared (18918384660450²) is 357905278160749861794202500
• 18918384660450 cubed (18918384660450³) is 6770989724250420574636898090741041125000
• The square root of 18918384660450 is 4349526.9467437491
• The cube root of 18918384660450 is 26645.7541917155

Scales and comparisons

• 18,918,384,660,450 seconds is equal to 601,546 years, 5 weeks, 6 days, 10 hours, 7 minutes, 30 seconds.
• To count from 1 to 18,918,384,660,450 would take you about one million, five hundred three thousand, eight hundred sixty-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 18918384660450 cubic inches would be around 2220.5 feet tall.

Recreational maths with 18918384660450

• 18918384660450 backwards is 05406648381981
• The number of decimal digits it has is: 14
• The sum of 18918384660450's digits is 63
• More coming soon!