18445622997438

Names of 18445622997438

• Cardinal: 18445622997438 can be written as Eighteen trillion, four hundred forty-five billion, six hundred twenty-two million, nine hundred ninety-seven thousand, four hundred thirty-eight.

Scientific notation

• Scientific notation: 1.8445622997438 × 10¹³

Factors of 18445622997438

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1608723468

Divisors of 18445622997438

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 26 39 42 49 63 78 91 98 117 126 147 182 234 273 294 441 546 637 819 882 1274 1638 1911 3822 5733 11466 1608723443 3217446886 4826170329 9652340658 11261064101 14478510987 20913404759 22522128202 28957021974 33783192303 41826809518 62740214277 67566384606 78827448707 101349576909 125480428554 146393833313 157654897414 188220642831 202699153818 236482346121 292787666626 376441285662 439181499939 472964692242 709447038363 878362999878 1024756833191 1317544499817 1418894076726 2049513666382 2635088999634 3074270499573 6148540999146 9222811498719 18445622997438
• Sum of all divisors σ(n): 50066691024168
• Sum of proper divisors (its aliquot sum) s(n): 31621068026730
• 18445622997438 is an abundant number, because the sum of its proper divisors (31621068026730) is greater than itself. Its abundance is 13175445029292

Bases of 18445622997438

• Binary: 100001100011010110100110011100111000110111110₂
• Hexadecimal: 0x10C6B4CE71BE
• Base-36: 6JDSVOIBI

Squares and roots of 18445622997438

• 18445622997438 squared (18445622997438²) is 340241007763613627754563844
• 18445622997438 cubed (18445622997438³) is 6275957357475992633332643081547619431672
• The square root of 18445622997438 is 4294836.7835620949
• The cube root of 18445622997438 is 26421.9242222007

Scales and comparisons

• 18,445,622,997,438 seconds is equal to 586,513 years, 39 weeks, 1 day, 21 hours, 57 minutes, 18 seconds.
• To count from 1 to 18,445,622,997,438 would take you about one million, four hundred sixty-six thousand, two hundred eighty-four 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 18445622997438 cubic inches would be around 2201.8 feet tall.

Recreational maths with 18445622997438

• 18445622997438 backwards is 83479922654481
• The number of decimal digits it has is: 14
• The sum of 18445622997438's digits is 72
• More coming soon!