21448384720

Names of 21448384720

• Cardinal: 21448384720 can be written as Twenty-one billion, four hundred forty-eight million, three hundred eighty-four thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.144838472 × 10¹⁰

Factors of 21448384720

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 38300701

Divisors of 21448384720

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 38300687 76601374 153202748 191503435 268104809 306405496 383006870 536209618 612810992 766013740 1072419236 1340524045 1532027480 2144838472 2681048090 3064054960 4289676944 5362096180 10724192360 21448384720
• Sum of all divisors σ(n): 56991423744
• Sum of proper divisors (its aliquot sum) s(n): 35543039024
• 21448384720 is an abundant number, because the sum of its proper divisors (35543039024) is greater than itself. Its abundance is 14094654304

Bases of 21448384720

• Binary: 10011111110011011000110000011010000₂
• Hexadecimal: 0x4FE6C60D0
• Base-36: 9UPTBKG

Squares and roots of 21448384720

• 21448384720 squared (21448384720²) is 460033207097129478400
• 21448384720 cubed (21448384720³) is 9866969209794667460376130048000
• The square root of 21448384720 is 146452.6705799523
• The cube root of 21448384720 is 2778.4219223723

Scales and comparisons

• 21,448,384,720 seconds is equal to 681 years, 51 weeks, 4 days, 4 hours, 38 minutes, 40 seconds.
• To count from 1 to 21,448,384,720 would take you about one thousand, three hundred sixty-three 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 21448384720 cubic inches would be around 231.5 feet tall.

Recreational maths with 21448384720

• 21448384720 backwards is 02748384412
• The number of decimal digits it has is: 11
• The sum of 21448384720's digits is 43
• More coming soon!