12640243988640

Names of 12640243988640

• Cardinal: 12640243988640 can be written as Twelve trillion, six hundred forty billion, two hundred forty-three million, nine hundred eighty-eight thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.264024398864 × 10¹³

Factors of 12640243988640

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 26333841653

Divisors of 12640243988640

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 26333841643 52667683286 79001524929 105335366572 131669208215 158003049858 210670733144 263338416430 316006099716 395007624645 421341466288 526676832860 632012199432 790015249290 842682932576 1053353665720 1264024398864 1580030498580 2106707331440 2528048797728 3160060997160 4213414662880 6320121994320 12640243988640
• Sum of all divisors σ(n): 39816768565728
• Sum of proper divisors (its aliquot sum) s(n): 27176524577088
• 12640243988640 is an abundant number, because the sum of its proper divisors (27176524577088) is greater than itself. Its abundance is 14536280588448

Bases of 12640243988640

• Binary: 10110111111100001001010000001011100010100000₂
• Hexadecimal: 0xB7F0940B8A0
• Base-36: 4HAUIWQLC

Squares and roots of 12640243988640

• 12640243988640 squared (12640243988640²) is 159775768092349656449049600
• 12640243988640 cubed (12640243988640³) is 2019604692159661465303068414841196544000
• The square root of 12640243988640 is 3555312.0803440027
• The cube root of 12640243988640 is 23294.4155715547

Scales and comparisons

• 12,640,243,988,640 seconds is equal to 401,920 years, 34 weeks, 2 days, 5 hours, 44 minutes.
• To count from 1 to 12,640,243,988,640 would take you about one million, four thousand, eight hundred one 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 12640243988640 cubic inches would be around 1941.2 feet tall.

Recreational maths with 12640243988640

• 12640243988640 backwards is 04688934204621
• The number of decimal digits it has is: 14
• The sum of 12640243988640's digits is 57
• More coming soon!