18443927691

Names of 18443927691

• Cardinal: 18443927691 can be written as Eighteen billion, four hundred forty-three million, nine hundred twenty-seven thousand, six hundred ninety-one.

Scientific notation

• Scientific notation: 1.8443927691 × 10¹⁰

Factors of 18443927691

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2234

Divisors of 18443927691

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 9 17 21 27 51 63 81 119 153 189 243 289 357 459 567 867 1071 1377 1701 2023 2207 2601 3213 4131 4913 6069 6621 7803 9639 14739 15449 18207 19863 23409 28917 34391 37519 44217 46347 54621 59589 70227 103173 112557 132651 139041 163863 178767 262633 309519 337671 397953 417123 491589 536301 637823 787899 928557 1013013 1193859 1251369 1913469 2363697 2785671 3039039 3754107 4464761 5740407 7091091 8357013 9117117 10842991 13394283 17221221 21273273 32528973 40182849 51663663 63819819 75900937 97586919 120548547 154990989 227702811 292760757 361645641 683108433 878282271 1084936923 2049325299 2634846813 6147975897 18443927691
• Sum of all divisors σ(n): 33563013120
• Sum of proper divisors (its aliquot sum) s(n): 15119085429
• 18443927691 is a deficient number, because the sum of its proper divisors (15119085429) is less than itself. Its deficiency is 3324842262

Bases of 18443927691

• Binary: 10001001011010110000000000010001011₂
• Hexadecimal: 0x44B58008B
• Base-36: 8H11DOR

Squares and roots of 18443927691

• 18443927691 squared (18443927691²) is 340178468670836591481
• 18443927691 cubed (18443927691³) is 6274227078200018973752470600371
• The square root of 18443927691 is 135808.4227542607
• The cube root of 18443927691 is 2642.1114732409

Scales and comparisons

• 18,443,927,691 seconds is equal to 586 years, 23 weeks, 6 days, 9 hours, 14 minutes, 51 seconds.
• To count from 1 to 18,443,927,691 would take you about one thousand, one hundred seventy-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 18443927691 cubic inches would be around 220.2 feet tall.

Recreational maths with 18443927691

• 18443927691 backwards is 19672934481
• The number of decimal digits it has is: 11
• The sum of 18443927691's digits is 54
• More coming soon!