13087612890

Names of 13087612890

• Cardinal: 13087612890 can be written as Thirteen billion, eighty-seven million, six hundred twelve thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 1.308761289 × 10¹⁰

Factors of 13087612890

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 9611

Divisors of 13087612890

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 5 6 9 10 11 15 18 22 30 33 45 55 66 90 99 110 121 127 165 198 242 254 330 363 381 495 605 635 726 762 990 1089 1143 1210 1270 1397 1815 1905 2178 2286 2794 3630 3810 4191 5445 5715 6985 8382 9463 10890 11430 12573 13970 15367 18926 20955 25146 28389 30734 41910 46101 47315 56778 62865 76835 85167 92202 94630 104093 125730 138303 141945 153670 170334 208186 230505 276606 283890 312279 425835 461010 520465 624558 691515 851670 936837 1040930 1145023 1201801 1383030 1561395 1873674 2290046 2403602 3122790 3435069 3605403 4684185 5725115 6009005 6870138 7210806 9368370 10305207 10816209 11450230 12018010 13219811 17175345 18027015 20610414 21632418 26439622 34350690 36054030 39659433 51526035 54081045 66099055 79318866 103052070 108162090 118978299 132198110 145417921 198297165 237956598 290835842 396594330 436253763 594891495 727089605 872507526 1189782990 1308761289 1454179210 2181268815 2617522578 4362537630 6543806445 13087612890
• Sum of all divisors σ(n): 37700941824
• Sum of proper divisors (its aliquot sum) s(n): 24613328934
• 13087612890 is an abundant number, because the sum of its proper divisors (24613328934) is greater than itself. Its abundance is 11525716044

Bases of 13087612890

• Binary: 1100001100000101010001111111011010₂
• Hexadecimal: 0x30C151FDA
• Base-36: 60G0YQI

Squares and roots of 13087612890

• 13087612890 squared (13087612890²) is 171285611158494152100
• 13087612890 cubed (13087612890³) is 2241719772469435898013580569000
• The square root of 13087612890 is 114401.1052831221
• The cube root of 13087612890 is 2356.6051020885

Scales and comparisons

• 13,087,612,890 seconds is equal to 416 years, 7 weeks, 4 days, 1 minute, 30 seconds.
• To count from 1 to 13,087,612,890 would take you about eight hundred thirty-two 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 13087612890 cubic inches would be around 196.4 feet tall.

Recreational maths with 13087612890

• 13087612890 backwards is 09821678031
• 13087612890 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 13087612890's digits is 45
• More coming soon!