18408182669721

Names of 18408182669721

• Cardinal: 18408182669721 can be written as Eighteen trillion, four hundred eight billion, one hundred eighty-two million, six hundred sixty-nine thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 1.8408182669721 × 10¹³

Factors of 18408182669721

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 979

Divisors of 18408182669721

• Number of divisors d(n): 324
• Complete list of divisors:
  1 3 9 13 19 27 37 39 57 81 111 117 169 171 243 247 333 351 361 481 507 513 703 741 907 999 1053 1083 1369 1443 1521 1539 2109 2223 2721 2997 3159 3211 3249 4107 4329 4563 4617 4693 6253 6327 6669 8163 8991 9139 9633 9747 11791 12321 12987 13357 13689 14079 17233 17797 18759 18981 20007 24489 26011 27417 28899 29241 33559 35373 36963 38961 40071 41067 42237 51699 53391 56277 56943 60021 61009 73467 78033 82251 86697 87723 100677 106119 110889 116883 118807 120213 126711 153283 155097 160173 168831 170829 173641 183027 220401 224029 231361 234099 246753 260091 302031 318357 327427 332667 338143 356421 360639 380133 436267 459849 465291 480519 494209 506493 520923 549081 637621 672087 694083 702297 740259 780273 906093 955071 982281 1014429 1069263 1081917 1140399 1241683 1308801 1379547 1395873 1441557 1482627 1519479 1562769 1647243 1912863 2016261 2082249 2106891 2220777 2257333 2718279 2865213 2912377 2946843 3043287 3207789 3245751 3725049 3926403 4138641 4187619 4256551 4324671 4395859 4447881 4688307 4941729 5671471 5738589 6048783 6246747 6320673 6424717 6771999 8154837 8289073 8737131 8840529 9129861 9623367 11175147 11779209 12114799 12415923 12769653 13187577 13343643 14064921 14825187 16141879 17014413 17215767 18146349 18740241 19274151 20315997 23591977 24867219 26211393 26521587 27389583 28870101 33525441 35337627 36344397 37247769 38308959 39562731 40030929 42194763 48425637 51043239 51647301 54439047 55335163 56220723 57822453 60947991 70775931 74601657 78634179 79564761 82168749 83521321 100576323 106012881 107757949 109033191 114926877 118688193 120092787 145276911 153129717 154941903 157492387 166005489 173467359 182843973 209844427 212327793 223804971 235902537 250563963 301728969 306695701 323273847 327099573 344780631 356064579 435830733 448247563 459389151 472477161 498016467 520402077 548531919 629533281 636983379 671414913 707707611 751691889 920087103 969821541 981298719 1034341893 1068193737 1307492199 1344742689 1378167453 1417431483 1494049401 1561206231 1888599843 1910950137 2014244739 2047401031 2255075667 2760261309 2909464623 2943896157 3922476597 3987044113 4034228067 4252294449 4482148203 5665799529 5732850411 5827218319 6142203093 6765227001 8280783927 8728393869 11961132339 12102684201 12756883347 13446444609 16997398587 17481654957 18426609279 20295681003 24842351781 26185181607 35883397017 36308052603 38270650041 50992195761 52444964871 55279827837 74527055343 75753838147 107650191051 108924157809 157334894613 165839483511 227261514441 322950573153 472004683839 497518450533 681784543323 968851719459 1416014051517 2045353629969 6136060889907 18408182669721
• Sum of all divisors σ(n): 32423313463632
• Sum of proper divisors (its aliquot sum) s(n): 14015130793911
• 18408182669721 is a deficient number, because the sum of its proper divisors (14015130793911) is less than itself. Its deficiency is 4393051875810

Bases of 18408182669721

• Binary: 100001011110111111101001100000110000110011001₂
• Hexadecimal: 0x10BDFD306199
• Base-36: 6IWLOOCK9

Squares and roots of 18408182669721

• 18408182669721 squared (18408182669721²) is 338861189201816562970217841
• 18408182669721 cubed (18408182669721³) is 6237818670505928515200020965752324692361
• The square root of 18408182669721 is 4290475.8092455201
• The cube root of 18408182669721 is 26404.0353248273

Scales and comparisons

• 18,408,182,669,721 seconds is equal to 585,323 years, 13 weeks, 6 days, 18 hours, 55 minutes, 21 seconds.
• To count from 1 to 18,408,182,669,721 would take you about one million, four hundred sixty-three thousand, three hundred eight 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 18408182669721 cubic inches would be around 2200.3 feet tall.

Recreational maths with 18408182669721

• 18408182669721 backwards is 12796628180481
• The number of decimal digits it has is: 14
• The sum of 18408182669721's digits is 63
• More coming soon!