18008920555840

Names of 18008920555840

• Cardinal: 18008920555840 can be written as Eighteen trillion, eight billion, nine hundred twenty million, five hundred fifty-five thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.800892055584 × 10¹³

Factors of 18008920555840

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 564229

Divisors of 18008920555840

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 64 80 160 320 129439 258878 434783 517756 647195 869566 1035512 1294390 1739132 2071024 2173915 2588780 3478264 4142048 4347830 5177560 6956528 8284096 8695660 10355120 13913056 17391320 20710240 27826112 34782640 41420480 69565280 139130560 56277876737 112555753474 225111506948 281389383685 450223013896 562778767370 900446027792 1125557534740 1800892055584 2251115069480 3601784111168 4502230138960 9004460277920 18008920555840
• Sum of all divisors σ(n): 42884172011520
• Sum of proper divisors (its aliquot sum) s(n): 24875251455680
• 18008920555840 is an abundant number, because the sum of its proper divisors (24875251455680) is greater than itself. Its abundance is 6866330899840

Bases of 18008920555840

• Binary: 100000110000100000111010100000000000101000000₂
• Hexadecimal: 0x106107500140
• Base-36: 6DT6MBLTS

Squares and roots of 18008920555840

• 18008920555840 squared (18008920555840²) is 324321219586556494558105600
• 18008920555840 cubed (18008920555840³) is 5840675078107435680968921037129416704000
• The square root of 18008920555840 is 4243691.8544870809
• The cube root of 18008920555840 is 26211.7425733843

Scales and comparisons

• 18,008,920,555,840 seconds is equal to 572,627 years, 50 weeks, 2 days, 12 hours, 10 minutes, 40 seconds.
• To count from 1 to 18,008,920,555,840 would take you about one million, four hundred thirty-one thousand, five hundred sixty-nine 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 18008920555840 cubic inches would be around 2184.3 feet tall.

Recreational maths with 18008920555840

• 18008920555840 backwards is 04855502980081
• The number of decimal digits it has is: 14
• The sum of 18008920555840's digits is 55
• More coming soon!