13388975722021810905

Names of 13388975722021810905

• Cardinal: 13388975722021810905 can be written as Thirteen quintillion, three hundred eighty-eight quadrillion, nine hundred seventy-five trillion, seven hundred twenty-two billion, twenty-one million, eight hundred ten thousand, nine hundred five.

Scientific notation

• Scientific notation: 1.3388975722021810905 × 10¹⁹

Factors of 13388975722021810905

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 33059199313634109

Divisors of 13388975722021810905

• Number of divisors d(n): 20
• Complete list of divisors:
  1 3 5 9 15 27 45 81 135 405 33059199313634101 99177597940902303 165295996568170505 297532793822706909 495887989704511515 892598381468120727 1487663969113534545 2677795144404362181 4462991907340603635 13388975722021810905
• Sum of all divisors σ(n): 24000978701698358052
• Sum of proper divisors (its aliquot sum) s(n): 10612002979676547147
• 13388975722021810905 is a deficient number, because the sum of its proper divisors (10612002979676547147) is less than itself. Its deficiency is 2776972742345263758

Bases of 13388975722021810905

• Binary: 1011100111001111001100100111101100111001011100000111001011011001₂
• Hexadecimal: 0xB9CF327B397072D9
• Base-36: 2TQ17S5S6WWK9

Squares and roots of 13388975722021810905

• 13388975722021810905 squared (13388975722021810905²) is 179264670884889472639040172535576919025
• 13388975722021810905 cubed (13388975722021810905³) is 2400170326294015330524018729684760754583641988351046967625
• The square root of 13388975722021810905 is 3659094932.0865960425
• The cube root of 13388975722021810905 is 2374556.1924274025

Scales and comparisons

• 13,388,975,722,021,810,905 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 13,388,975,722,021,810,905 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and 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 13388975722021810905 cubic inches would be around 197879.7 feet tall.

Recreational maths with 13388975722021810905

• 13388975722021810905 backwards is 50901812022757988331
• 13388975722021810905 is a Harshad number.
• The number of decimal digits it has is: 20
• The sum of 13388975722021810905's digits is 81
• More coming soon!