13281660

Names of 13281660

• Cardinal: 13281660 can be written as Thirteen million, two hundred eighty-one thousand, six hundred sixty.

Scientific notation

• Scientific notation: 1.328166 × 10⁷

Factors of 13281660

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 227

Divisors of 13281660

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 63 70 83 84 90 105 126 127 140 166 180 210 249 252 254 315 332 381 415 420 498 508 581 630 635 747 762 830 889 996 1143 1162 1245 1260 1270 1494 1524 1660 1743 1778 1905 2286 2324 2490 2540 2667 2905 2988 3486 3556 3735 3810 4445 4572 4980 5229 5334 5715 5810 6972 7470 7620 8001 8715 8890 10458 10541 10668 11430 11620 13335 14940 16002 17430 17780 20916 21082 22860 26145 26670 31623 32004 34860 40005 42164 52290 52705 53340 63246 73787 80010 94869 104580 105410 126492 147574 158115 160020 189738 210820 221361 295148 316230 368935 379476 442722 474345 632460 664083 737870 885444 948690 1106805 1328166 1475740 1897380 2213610 2656332 3320415 4427220 6640830 13281660
• Sum of all divisors σ(n): 46964736
• Sum of proper divisors (its aliquot sum) s(n): 33683076
• 13281660 is an abundant number, because the sum of its proper divisors (33683076) is greater than itself. Its abundance is 20401416

Bases of 13281660

• Binary: 110010101010100101111100₂
• Hexadecimal: 0xCAA97C
• Base-36: 7WO70

Squares and roots of 13281660

• 13281660 squared (13281660²) is 176402492355600
• 13281660 cubed (13281660³) is 2342917926619678296000
• The square root of 13281660 is 3644.4011853801
• The cube root of 13281660 is 236.8194961653

Scales and comparisons

• 13,281,660 seconds is equal to 21 weeks, 6 days, 17 hours, 21 minutes.
• To count from 1 to 13,281,660 would take you about thirty-two weeks!

  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 13281660 cubic inches would be around 19.7 feet tall.

Recreational maths with 13281660

• 13281660 backwards is 06618231
• The number of decimal digits it has is: 8
• The sum of 13281660's digits is 27
• More coming soon!