13284761721

Names of 13284761721

• Cardinal: 13284761721 can be written as Thirteen billion, two hundred eighty-four million, seven hundred sixty-one thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 1.3284761721 × 10¹⁰

Factors of 13284761721

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 10722

Divisors of 13284761721

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 7 11 21 33 43 77 127 129 231 301 381 473 889 903 1397 1419 2667 3311 4191 5461 9779 9933 10531 16383 29337 31593 38227 60071 73717 114681 115841 180213 221151 347523 420497 452833 810887 1261491 1337437 1358499 2432661 3169831 4012311 4981163 9362059 9509493 14711807 14943489 28086177 34868141 44135421 57509791 102982649 104604423 172529373 308947947 402568537 632607701 1207705611 1897823103 4428253907 13284761721
• Sum of all divisors σ(n): 22777430016
• Sum of proper divisors (its aliquot sum) s(n): 9492668295
• 13284761721 is a deficient number, because the sum of its proper divisors (9492668295) is less than itself. Its deficiency is 3792093426

Bases of 13284761721

• Binary: 1100010111110101010110000001111001₂
• Hexadecimal: 0x317D56079
• Base-36: 63PEJQX

Squares and roots of 13284761721

• 13284761721 squared (13284761721²) is 176484893983746881841
• 13284761721 cubed (13284761721³) is 2344559763930023772034426808361
• The square root of 13284761721 is 115259.5406940351
• The cube root of 13284761721 is 2368.3792987601

Scales and comparisons

• 13,284,761,721 seconds is equal to 422 years, 21 weeks, 3 days, 19 hours, 35 minutes, 21 seconds.
• To count from 1 to 13,284,761,721 would take you about eight hundred forty-four 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 13284761721 cubic inches would be around 197.4 feet tall.

Recreational maths with 13284761721

• 13284761721 backwards is 12716748231
• The number of decimal digits it has is: 11
• The sum of 13284761721's digits is 42
• More coming soon!