28744720320

Names of 28744720320

• Cardinal: 28744720320 can be written as Twenty-eight billion, seven hundred forty-four million, seven hundred twenty thousand, three hundred twenty.

Scientific notation

• Scientific notation: 2.874472032 × 10¹⁰

Factors of 28744720320

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 29942427

Divisors of 28744720320

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 160 192 240 320 480 960 29942417 59884834 89827251 119769668 149712085 179654502 239539336 299424170 359309004 449136255 479078672 598848340 718618008 898272510 958157344 1197696680 1437236016 1796545020 1916314688 2395393360 2874472032 3593090040 4790786720 5748944064 7186180080 9581573440 14372360160 28744720320
• Sum of all divisors σ(n): 91264490064
• Sum of proper divisors (its aliquot sum) s(n): 62519769744
• 28744720320 is an abundant number, because the sum of its proper divisors (62519769744) is greater than itself. Its abundance is 33775049424

Bases of 28744720320

• Binary: 11010110001010100011001111111000000₂
• Hexadecimal: 0x6B1519FC0
• Base-36: D7DV45C

Squares and roots of 28744720320

• 28744720320 squared (28744720320²) is 826258946275020902400
• 28744720320 cubed (28744720320³) is 23750582322573381641642016768000
• The square root of 28744720320 is 169542.6799363511
• The cube root of 28744720320 is 3063.2753002965

Scales and comparisons

• 28,744,720,320 seconds is equal to 913 years, 51 weeks, 4 days, 12 hours, 32 minutes.
• To count from 1 to 28,744,720,320 would take you about one thousand, eight hundred twenty-seven 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 28744720320 cubic inches would be around 255.3 feet tall.

Recreational maths with 28744720320

• 28744720320 backwards is 02302744782
• The number of decimal digits it has is: 11
• The sum of 28744720320's digits is 39
• More coming soon!