18388965294148372

Names of 18388965294148372

• Cardinal: 18388965294148372 can be written as Eighteen quadrillion, three hundred eighty-eight trillion, nine hundred sixty-five billion, two hundred ninety-four million, one hundred forty-eight thousand, three hundred seventy-two.

Scientific notation

• Scientific notation: 1.8388965294148372 × 10¹⁶

Factors of 18388965294148372

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1071

Divisors of 18388965294148372

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 4 7 11 14 19 22 23 28 38 44 46 49 76 77 92 98 133 154 161 196 209 253 266 308 322 361 418 437 506 532 539 644 722 836 874 931 1009 1012 1078 1127 1444 1463 1748 1771 1862 2018 2156 2254 2527 2926 3059 3542 3724 3971 4036 4508 4807 5054 5852 6118 7063 7084 7942 8303 9614 10108 10241 11099 12236 12397 14126 15884 16606 17689 19171 19228 20482 21413 22198 23207 24794 27797 28252 33212 33649 35378 38342 40964 42826 44396 46414 49441 49588 55594 58121 67298 70756 76684 77693 85652 91333 92828 98882 111188 116242 134197 134596 155386 162449 182666 194579 197764 210881 232484 235543 255277 268394 310772 324898 364249 365332 389158 406847 421762 440933 471086 510554 536788 543851 639331 649796 728498 778316 813694 843524 881866 939379 942172 1018081 1021108 1087702 1137143 1278662 1456996 1476167 1627388 1763732 1786939 1878758 2036162 2175404 2274286 2549743 2557324 2952334 3086531 3573878 3757516 4006739 4072324 4475317 4548572 4850263 5099486 5904668 6173062 7126567 7147756 8013478 8377727 8950634 9700526 10198972 10333169 11198891 12346124 12508573 14253134 16026956 16755454 17848201 17901268 19343539 19401052 20666338 21605717 22397782 23415863 25017146 28047173 28506268 33510908 33951841 35696402 38687078 41332676 43211434 44795564 46831726 49885969 50034292 56094346 58644089 67903682 71392804 77374156 78392237 86422868 92154997 93663452 99771938 112188692 117288178 135404773 135807364 156784474 163911041 184309994 196330211 199543876 212778929 234576356 237662887 257574493 270809546 313568948 327822082 367527241 368619988 392660422 410508623 425557858 444901397 475325774 515148986 541619092 548745659 645084979 655644164 735054482 785320844 821017246 851115716 889802794 947833411 950651548 1027243729 1030297972 1097491318 1147377287 1290169958 1470108964 1489452503 1642034492 1779605588 1803021451 1895666822 2054487458 2194982636 2294754574 2572690687 2580339916 2978905006 3114309779 3606042902 3791333644 4042799651 4108974916 4515594853 4589509148 4893915367 5145381374 5957810012 6228619558 7190706103 7212085804 8085599302 8453126543 9031189706 9787830734 10290762748 10426167521 11299681019 12457239116 12621150157 14381412206 16171198604 16906253086 18008834809 18062379412 19517630851 19575661468 20852335042 21800168453 22599362038 23626605767 25242300314 28299597557 28762824412 33812506172 34257407569 36017669618 39035261702 41704670084 43600336906 45198724076 47253211534 50334942721 50484600628 56599195114 59171885801 68514815138 72035339236 78070523404 79097767133 87200673812 92984391973 94506423068 100669885442 113198390228 118343771602 136623415957 137029630276 158195534266 165386240369 185968783946 198097182899 201339770884 214693939361 236687543204 239801852983 259892663437 273246831914 316391068532 330772480738 370834986169 371937567892 396194365798 414203200607 429387878722 448905509573 479603705966 519785326874 546493663828 553684369931 650890743811 661544961476 741669972338 792388731596 828406401214 858775757444 897811019146 956363911699 959207411932 1039570653748 1107368739862 1157703682583 1301781487622 1483339944676 1502857575527 1656812802428 1795622038292 1819248644059 1912727823398 2214737479724 2315407365166 2595844903183 2603562975244 3005715151054 3142338567011 3638497288118 3825455646796 4079184847859 4556235206677 4630814730332 4937960605303 5191689806366 6011430302108 6284677134022 7276994576236 8158369695718 8529204681887 9112470413354 9875921210606 10383379612732 10520003028689 12569354268044 12734740508413 16316739391436 17058409363774 18170914322281 18224940826708 19751842421212 21040006057378 21996369969077 25469481016826 28554293935013 34116818727548 34565724237121 36341828644562 42080012114756 43992739938154 50938962033652 57108587870026 59704432773209 69131448474242 72683657289124 87985479876308 93821251500757 114217175740052 119408865546418 138262896948484 187642503001514 199880057545091 238817731092836 241960069659847 375285006003028 399760115090182 417931029412463 483920139319694 656748760505299 799520230180364 835862058824926 967840278639388 1313497521010598 1671724117649852 2626995042021196 4597241323537093 9194482647074186 18388965294148372
• Sum of all divisors σ(n): 45018859862471040
• Sum of proper divisors (its aliquot sum) s(n): 26629894568322668
• 18388965294148372 is an abundant number, because the sum of its proper divisors (26629894568322668) is greater than itself. Its abundance is 8240929274174296

Bases of 18388965294148372

• Binary: 1000001010101001010101010100000001001010000101100010100₂
• Hexadecimal: 0x4154AAA0250B14
• Base-36: 512CE174E1G

Squares and roots of 18388965294148372

• 18388965294148372 squared (18388965294148372²) is 338154044589393321553224750250384
• 18388965294148372 cubed (18388965294148372³) is 6218302990030254862461449572041624248817045974848
• The square root of 18388965294148372 is 135605919.0970230915
• The cube root of 18388965294148372 is 263948.4388808283

Scales and comparisons

• 18,388,965,294,148,372 seconds is equal to 584,712,215 years, 28 weeks, 4 days, 1 hour, 12 minutes, 52 seconds.
• To count from 1 to 18,388,965,294,148,372 would take you about one billion, seven hundred fifty-four million, one hundred thirty-six thousand, six hundred forty-six 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 18388965294148372 cubic inches would be around 21995.7 feet tall.

Recreational maths with 18388965294148372

• 18388965294148372 backwards is 27384149256988381
• The number of decimal digits it has is: 17
• The sum of 18388965294148372's digits is 88
• More coming soon!