13120838731

Names of 13120838731

• Cardinal: 13120838731 can be written as Thirteen billion, one hundred twenty million, eight hundred thirty-eight thousand, seven hundred thirty-one.

Scientific notation

• Scientific notation: 1.3120838731 × 10¹⁰

Factors of 13120838731

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 314

Divisors of 13120838731

• Number of divisors d(n): 144
• Complete list of divisors:
  1 7 11 13 17 37 49 77 91 119 143 169 187 221 229 259 407 481 539 629 637 833 1001 1183 1309 1547 1603 1813 1859 2431 2519 2849 2873 2977 3367 3893 4403 5291 6253 6919 7007 8177 8281 8473 9163 10829 11221 13013 17017 17633 19943 20111 20839 23569 27251 30821 31603 32747 37037 38701 42823 43771 48433 50609 57239 59311 68783 89947 91091 93203 106301 110149 119119 123431 140777 144041 145873 190757 221221 229229 259259 270907 299761 306397 339031 354263 400673 415177 425711 481481 556699 629629 652421 657917 744107 771043 1008287 1169311 1211639 1431937 1548547 1584451 1604603 1872533 1896349 2098327 2479841 2979977 3370367 3896893 4407403 4566947 4605419 5208749 5397301 7058009 7237087 8185177 8481473 10023559 11091157 13107731 15751307 20597863 20859839 24342929 27278251 32237933 50659609 57296239 59370311 70164913 77638099 91754117 110259149 144185041 170400503 267772219 354617263 771814043 1009295287 1192803521 1874405533 13120838731
• Sum of all divisors σ(n): 19692059040
• Sum of proper divisors (its aliquot sum) s(n): 6571220309
• 13120838731 is a deficient number, because the sum of its proper divisors (6571220309) is less than itself. Its deficiency is 6549618422

Bases of 13120838731

• Binary: 1100001110000100000001110001001011₂
• Hexadecimal: 0x30E101C4B
• Base-36: 60ZT3YJ

Squares and roots of 13120838731

• 13120838731 squared (13120838731²) is 172156409004909690361
• 13120838731 cubed (13120838731³) is 2258836479061496234445826171891
• The square root of 13120838731 is 114546.2296673269
• The cube root of 13120838731 is 2358.5976737291

Scales and comparisons

• 13,120,838,731 seconds is equal to 417 years, 10 weeks, 3 days, 13 hours, 25 minutes, 31 seconds.
• To count from 1 to 13,120,838,731 would take you about eight hundred thirty-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 13120838731 cubic inches would be around 196.5 feet tall.

Recreational maths with 13120838731

• 13120838731 backwards is 13783802131
• 13120838731 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 13120838731's digits is 37
• More coming soon!