18372137506191

Names of 18372137506191

• Cardinal: 18372137506191 can be written as Eighteen trillion, three hundred seventy-two billion, one hundred thirty-seven million, five hundred six thousand, one hundred ninety-one.

Scientific notation

• Scientific notation: 1.8372137506191 × 10¹³

Factors of 18372137506191

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 134875

Divisors of 18372137506191

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 7 9 19 21 49 57 63 133 147 171 399 441 931 1197 2793 8379 18913 56739 115933 132391 170217 347799 359347 397173 811531 926737 1043397 1078041 1191519 2202727 2434593 2515429 2780211 3234123 5680717 6608181 7303779 7546287 8340633 15419089 17042151 17608003 19824543 22638861 46257267 51126453 52824009 107933623 138771801 158472027 323800869 971402607 2192640829 6577922487 15348485803 19733767461 41660175751 46045457409 107439400621 124980527253 138136372227 291621230257 322318201863 374941581759 874863690771 966954605589 2041348611799 2624591072313 6124045835397 18372137506191
• Sum of all divisors σ(n): 32496935518320
• Sum of proper divisors (its aliquot sum) s(n): 14124798012129
• 18372137506191 is a deficient number, because the sum of its proper divisors (14124798012129) is less than itself. Its deficiency is 4247339494062

Bases of 18372137506191

• Binary: 100001011010110011000101110101101010110001111₂
• Hexadecimal: 0x10B598BAD58F
• Base-36: 6IG1KBEDR

Squares and roots of 18372137506191

• 18372137506191 squared (18372137506191²) is 337535436546390056563328481
• 18372137506191 cubed (18372137506191³) is 6201247453442485135472949150781704125871
• The square root of 18372137506191 is 4286273.1488078311
• The cube root of 18372137506191 is 26386.7901017679

Scales and comparisons

• 18,372,137,506,191 seconds is equal to 584,177 years, 7 weeks, 3 days, 9 hours, 29 minutes, 51 seconds.
• To count from 1 to 18,372,137,506,191 would take you about one million, four hundred sixty thousand, four hundred forty-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 18372137506191 cubic inches would be around 2198.9 feet tall.

Recreational maths with 18372137506191

• 18372137506191 backwards is 19160573127381
• The number of decimal digits it has is: 14
• The sum of 18372137506191's digits is 54
• More coming soon!