11987671680

Names of 11987671680

• Cardinal: 11987671680 can be written as Eleven billion, nine hundred eighty-seven million, six hundred seventy-one thousand, six hundred eighty.

Scientific notation

• Scientific notation: 1.198767168 × 10¹⁰

Factors of 11987671680

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 693741

Divisors of 11987671680

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 90 96 108 120 128 135 144 160 180 192 216 240 270 288 320 360 384 432 480 540 576 640 720 864 960 1080 1152 1440 1728 1920 2160 2880 3456 4320 5760 8640 17280 693731 1387462 2081193 2774924 3468655 4162386 5549848 6243579 6937310 8324772 10405965 11099696 12487158 13874620 16649544 18730737 20811930 22199392 24974316 27749240 31217895 33299088 37461474 41623860 44398784 49948632 55498480 62435790 66598176 74922948 83247720 88797568 93653685 99897264 110996960 124871580 133196352 149845896 166495440 187307370 199794528 221993920 249743160 266392704 299691792 332990880 374614740 399589056 443987840 499486320 599383584 665981760 749229480 799178112 998972640 1198767168 1331963520 1498458960 1997945280 2397534336 2996917920 3995890560 5993835840 11987671680
• Sum of all divisors σ(n): 42456398400
• Sum of proper divisors (its aliquot sum) s(n): 30468726720
• 11987671680 is an abundant number, because the sum of its proper divisors (30468726720) is greater than itself. Its abundance is 18481055040

Bases of 11987671680

• Binary: 1011001010100001010101101010000000₂
• Hexadecimal: 0x2CA855A80
• Base-36: 5I95EO0

Squares and roots of 11987671680

• 11987671680 squared (11987671680²) is 143704272307474022400
• 11987671680 cubed (11987671680³) is 1722679635435314590660165632000
• The square root of 11987671680 is 109488.2262163379
• The cube root of 11987671680 is 2288.6441940461

Scales and comparisons

• 11,987,671,680 seconds is equal to 381 years, 8 weeks, 6 days, 4 hours, 48 minutes.
• To count from 1 to 11,987,671,680 would take you about seven hundred sixty-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 11987671680 cubic inches would be around 190.7 feet tall.

Recreational maths with 11987671680

• 11987671680 backwards is 08617678911
• 11987671680 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 11987671680's digits is 54
• More coming soon!