18645029785440

Names of 18645029785440

• Cardinal: 18645029785440 can be written as Eighteen trillion, six hundred forty-five billion, twenty-nine million, seven hundred eighty-five thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.864502978544 × 10¹³

Factors of 18645029785440

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 4315979127

Divisors of 18645029785440

• Number of divisors d(n): 96
• 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 72 80 90 96 108 120 135 144 160 180 216 240 270 288 360 432 480 540 720 864 1080 1440 2160 4320 4315979117 8631958234 12947937351 17263916468 21579895585 25895874702 34527832936 38843812053 43159791170 51791749404 64739686755 69055665872 77687624106 86319582340 103583498808 116531436159 129479373510 138111331744 155375248212 172639164680 194219060265 207166997616 233062872318 258958747020 310750496424 345278329360 388438120530 414333995232 466125744636 517917494040 582657180795 621500992848 690556658720 776876241060 932251489272 1035834988080 1165314361590 1243001985696 1553752482120 1864502978544 2071669976160 2330628723180 3107504964240 3729005957088 4661257446360 6215009928480 9322514892720 18645029785440
• Sum of all divisors σ(n): 65257604264160
• Sum of proper divisors (its aliquot sum) s(n): 46612574478720
• 18645029785440 is an abundant number, because the sum of its proper divisors (46612574478720) is greater than itself. Its abundance is 27967544693280

Bases of 18645029785440

• Binary: 100001111010100100010011000001000111101100000₂
• Hexadecimal: 0x10F522608F60
• Base-36: 6LXEPC0O0

Squares and roots of 18645029785440

• 18645029785440 squared (18645029785440²) is 347637135699944772435993600
• 18645029785440 cubed (18645029785440³) is 6481704749650517444632123377941213184000
• The square root of 18645029785440 is 4317989.0904725547
• The cube root of 18645029785440 is 26516.7947580979

Scales and comparisons

• 18,645,029,785,440 seconds is equal to 592,854 years, 14 weeks, 1 day, 20 hours, 24 minutes.
• To count from 1 to 18,645,029,785,440 would take you about one million, four hundred eighty-two thousand, one hundred thirty-five 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 18645029785440 cubic inches would be around 2209.7 feet tall.

Recreational maths with 18645029785440

• 18645029785440 backwards is 04458792054681
• The number of decimal digits it has is: 14
• The sum of 18645029785440's digits is 63
• More coming soon!