18353443400649

Names of 18353443400649

• Cardinal: 18353443400649 can be written as Eighteen trillion, three hundred fifty-three billion, four hundred forty-three million, four hundred thousand, six hundred forty-nine.

Scientific notation

• Scientific notation: 1.8353443400649 × 10¹³

Factors of 18353443400649

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2161318

Divisors of 18353443400649

• Number of divisors d(n): 80
• Complete list of divisors:
  1 3 7 9 21 27 49 63 131 147 189 343 393 441 917 1029 1179 1323 2401 2751 3087 3537 6419 7203 8253 9261 19257 21609 24759 44933 57771 64827 134799 173313 314531 404397 943593 1213191 2161177 2830779 6483531 8492337 15128239 19450593 45384717 58351779 105897673 136154151 283114187 317693019 408462453 741283711 849342561 953079057 1981799309 2223851133 2548027683 2859237171 5188985977 5945397927 6671553399 7644083049 13872595163 15566957931 17836193781 20014660197 41617785489 46700873793 53508581343 97108166141 124853356467 140102621379 291324498423 374560069401 679757162987 873973495269 2039271488961 2621920485807 6117814466883 18353443400649
• Sum of all divisors σ(n): 31962266571840
• Sum of proper divisors (its aliquot sum) s(n): 13608823171191
• 18353443400649 is a deficient number, because the sum of its proper divisors (13608823171191) is less than itself. Its deficiency is 4744620229458

Bases of 18353443400649

• Binary: 100001011000100111110011110010110101111001001₂
• Hexadecimal: 0x10B13E796BC9
• Base-36: 6I7GEBU89

Squares and roots of 18353443400649

• 18353443400649 squared (18353443400649²) is 336848884660826329533621201
• 18353443400649 cubed (18353443400649³) is 6182336939194219162469941397460843559449
• The square root of 18353443400649 is 4284091.8991834197
• The cube root of 18353443400649 is 26377.8373267499

Scales and comparisons

• 18,353,443,400,649 seconds is equal to 583,582 years, 37 weeks, 6 days, 10 hours, 24 minutes, 9 seconds.
• To count from 1 to 18,353,443,400,649 would take you about one million, four hundred fifty-eight thousand, nine hundred fifty-six 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 18353443400649 cubic inches would be around 2198.2 feet tall.

Recreational maths with 18353443400649

• 18353443400649 backwards is 94600434435381
• The number of decimal digits it has is: 14
• The sum of 18353443400649's digits is 54
• More coming soon!