18205802109

Names of 18205802109

• Cardinal: 18205802109 can be written as Eighteen billion, two hundred five million, eight hundred two thousand, one hundred nine.

Scientific notation

• Scientific notation: 1.8205802109 × 10¹⁰

Factors of 18205802109

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 484

Divisors of 18205802109

• Number of divisors d(n): 160
• Complete list of divisors:
  1 3 9 11 19 27 31 33 57 81 93 99 113 171 209 279 297 307 339 341 513 589 627 837 891 921 1017 1023 1243 1539 1767 1881 2147 2511 2763 3051 3069 3377 3503 3729 5301 5643 5833 6441 6479 8289 9153 9207 9517 10131 10509 11187 15903 16929 17499 19323 19437 23617 24867 27621 28551 30393 31527 33561 34691 38533 47709 52497 57969 58311 64163 66557 70851 85653 91179 94581 100683 104073 104687 115599 157491 173907 174933 180823 192489 199671 212553 256959 273537 283743 312219 314061 346797 381601 472473 524799 542469 577467 599013 637659 659129 732127 770877 936657 942183 1040391 1075421 1144803 1627407 1732401 1797039 1912977 1977387 1989053 2196381 2809971 2826549 3121173 3226263 3434409 4882221 5197203 5391117 5932161 5967159 6589143 7250419 8479647 9678789 10303227 11829631 14646663 17796483 17901477 19767429 20432999 21751257 29036367 30909681 35488893 53389449 53704431 59302287 61298997 65253771 87109101 106466679 161113293 183896991 195761313 224762989 319400037 551690973 587283939 674288967 958200111 1655072919 2022866901 6068600703 18205802109
• Sum of all divisors σ(n): 32628879360
• Sum of proper divisors (its aliquot sum) s(n): 14423077251
• 18205802109 is a deficient number, because the sum of its proper divisors (14423077251) is less than itself. Its deficiency is 3782724858

Bases of 18205802109

• Binary: 10000111101001001100111111001111101₂
• Hexadecimal: 0x43D267E7D
• Base-36: 8D39IT9

Squares and roots of 18205802109

• 18205802109 squared (18205802109²) is 331451230432068847881
• 18205802109 cubed (18205802109³) is 6034335510030804011985109981029
• The square root of 18205802109 is 134928.8779653933
• The cube root of 18205802109 is 2630.6916072575

Scales and comparisons

• 18,205,802,109 seconds is equal to 578 years, 46 weeks, 1 day, 7 hours, 15 minutes, 9 seconds.
• To count from 1 to 18,205,802,109 would take you about one thousand, one hundred fifty-seven 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 18205802109 cubic inches would be around 219.2 feet tall.

Recreational maths with 18205802109

• 18205802109 backwards is 90120850281
• The number of decimal digits it has is: 11
• The sum of 18205802109's digits is 36
• More coming soon!