13121441872

Names of 13121441872

• Cardinal: 13121441872 can be written as Thirteen billion, one hundred twenty-one million, four hundred forty-one thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.3121441872 × 10¹⁰

Factors of 13121441872

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 22796

Divisors of 13121441872

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 7 8 11 14 16 22 28 44 49 56 67 77 88 98 112 134 154 176 196 268 308 392 469 536 539 616 737 784 938 1072 1078 1232 1474 1876 2156 2948 3283 3752 4312 5159 5896 6566 7504 8624 10318 11792 13132 20636 22709 26264 36113 41272 45418 52528 72226 82544 90836 144452 158963 181672 249799 288904 317926 363344 499598 577808 635852 999196 1112741 1271704 1521503 1748593 1998392 2225482 2543408 3043006 3497186 3996784 4450964 6086012 6994372 8901928 10650521 12172024 12240151 13988744 16736533 17803856 21301042 24344048 24480302 27977488 33473066 42602084 48960604 66946132 74553647 85204168 97921208 117155731 133892264 149107294 170408336 195842416 234311462 267784528 298214588 468622924 596429176 820090117 937245848 1192858352 1640180234 1874491696 3280360468 6560720936 13121441872
• Sum of all divisors σ(n): 32744913120
• Sum of proper divisors (its aliquot sum) s(n): 19623471248
• 13121441872 is an abundant number, because the sum of its proper divisors (19623471248) is greater than itself. Its abundance is 6502029376

Bases of 13121441872

• Binary: 1100001110000110010101000001010000₂
• Hexadecimal: 0x30E195050
• Base-36: 61061CG

Squares and roots of 13121441872

• 13121441872 squared (13121441872²) is 172172236800274864384
• 13121441872 cubed (13121441872³) is 2259147997147025906637339086848
• The square root of 13121441872 is 114548.8623775899
• The cube root of 13121441872 is 2358.6338133181

Scales and comparisons

• 13,121,441,872 seconds is equal to 417 years, 11 weeks, 3 days, 12 hours, 57 minutes, 52 seconds.
• To count from 1 to 13,121,441,872 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 13121441872 cubic inches would be around 196.6 feet tall.

Recreational maths with 13121441872

• 13121441872 backwards is 27814412131
• The number of decimal digits it has is: 11
• The sum of 13121441872's digits is 34
• More coming soon!