18205406820837225

Names of 18205406820837225

• Cardinal: 18205406820837225 can be written as Eighteen quadrillion, two hundred five trillion, four hundred six billion, eight hundred twenty million, eight hundred thirty-seven thousand, two hundred twenty-five.

Scientific notation

• Scientific notation: 1.8205406820837225 × 10¹⁶

Factors of 18205406820837225

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 160447

Divisors of 18205406820837225

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 5 9 11 15 25 27 33 45 55 75 81 99 121 135 165 225 243 275 297 363 405 495 605 675 729 825 891 1089 1215 1485 1815 2025 2187 2475 2673 3025 3267 3645 4455 5445 6075 7425 8019 9075 9801 10935 13365 16335 18225 19531 22275 24057 27225 29403 40095 49005 54675 58593 66825 81675 88209 97655 120285 140897 147015 175779 200475 214841 245025 264627 292965 422691 441045 488275 527337 601425 644523 704485 735075 878895 1074205 1268073 1323135 1464825 1549867 1582011 1933569 2113455 2205225 2363251 2636685 3222615 3522425 3804219 4394475 4649601 4746033 5371025 5800707 6340365 6615675 7089753 7749335 7910055 9667845 10567275 11412657 11816255 13183425 13948803 14238099 16113075 17048537 17402121 19021095 21269259 23248005 23730165 29003535 31701825 34237971 35448765 38746675 39550275 41846409 42714297 48339225 51145611 52206363 57063285 59081275 63807777 69744015 71190495 85242685 87010605 95105475 102713913 106346295 116240025 118650825 125539227 145017675 153436833 156619089 171189855 177243825 191423331 209232045 213571485 255728055 261031815 285316425 308141739 319038885 348720075 355952475 376617681 426213425 435053025 460310499 469857267 513569565 531731475 574269993 627696135 767184165 783095445 855949275 957116655 1046160225 1067857425 1129853043 1278640275 1305159075 1380931497 1540708695 1595194425 1722809979 1883088405 2301552495 2349286335 2567847825 2751859307 2871349965 3138480675 3389559129 3835920825 3915477225 4142794491 4785583275 5168429937 5649265215 6904657485 7703543475 8255577921 8614049895 9415442025 11507762475 11746431675 12428383473 13759296535 14356749825 16947795645 20713972455 24766733763 25842149685 28246326075 30270452377 34523287425 37285150419 41277889605 43070249475 62141917365 68796482675 74300201289 84738978225 90811357131 103569862275 123833668815 129210748425 151352261885 186425752095 206389448025 222900603867 272434071393 310709586825 332974976147 371501006445 454056785655 619168344075 668701811601 756761309425 817302214179 932128760475 998924928441 1114503019335 1362170356965 1664874880735 1857505032225 2006105434803 2270283928275 2451906642537 2996774785323 3343509058005 4086511070895 4994624642205 5572515096675 6018316304409 6810851784825 7355719927611 8324374403675 8990324355969 10030527174015 12259533212685 14983873926615 16717545290025 20432555354475 22067159782833 24973123211025 26970973067907 30091581522045 36778599638055 44951621779845 50152635870075 61297666063425 66201479348499 74919369633075 80912919203721 110335798914165 134854865339535 150457907610225 183892998190275 224758108899225 242738757611163 331007396742495 404564596018605 551678994570825 674274326697675 728216272833489 1213693788055815 1655036983712475 2022822980093025 3641081364167445 6068468940279075 18205406820837225
• Sum of all divisors σ(n): 37216773778611840
• Sum of proper divisors (its aliquot sum) s(n): 19011366957774615
• 18205406820837225 is an abundant number, because the sum of its proper divisors (19011366957774615) is greater than itself. Its abundance is 805960136937390

Bases of 18205406820837225

• Binary: 1000000101011011011100010010110100011000010011101101001₂
• Hexadecimal: 0x40ADB8968C2769
• Base-36: 4Z9A0FNG9K9

Squares and roots of 18205406820837225

• 18205406820837225 squared (18205406820837225²) is 331436837512186555850449945700625
• 18205406820837225 cubed (18205406820837225³) is 6033942462321080163278232730748681009051705765625
• The square root of 18205406820837225 is 134927413.1555082657
• The cube root of 18205406820837225 is 263067.2567745291

Scales and comparisons

• 18,205,406,820,837,225 seconds is equal to 578,875,623 years, 45 weeks, 6 days, 33 minutes, 45 seconds.
• To count from 1 to 18,205,406,820,837,225 would take you about one billion, seven hundred thirty-six million, six hundred twenty-six thousand, eight hundred seventy-one 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 18205406820837225 cubic inches would be around 21922.3 feet tall.

Recreational maths with 18205406820837225

• 18205406820837225 backwards is 52273802860450281
• The number of decimal digits it has is: 17
• The sum of 18205406820837225's digits is 63
• More coming soon!