16394199920

Names of 16394199920

• Cardinal: 16394199920 can be written as Sixteen billion, three hundred ninety-four million, one hundred ninety-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.639419992 × 10¹⁰

Factors of 16394199920

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 29275371

Divisors of 16394199920

• 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 29275357 58550714 117101428 146376785 204927499 234202856 292753570 409854998 468405712 585507140 819709996 1024637495 1171014280 1639419992 2049274990 2342028560 3278839984 4098549980 8197099960 16394199920
• Sum of all divisors σ(n): 43561732704
• Sum of proper divisors (its aliquot sum) s(n): 27167532784
• 16394199920 is an abundant number, because the sum of its proper divisors (27167532784) is greater than itself. Its abundance is 10773332864

Bases of 16394199920

• Binary: 1111010001001010111010001101110000₂
• Hexadecimal: 0x3D12BA370
• Base-36: 7J4OLM8

Squares and roots of 16394199920

• 16394199920 squared (16394199920²) is 268769791016928006400
• 16394199920 cubed (16394199920³) is 4406265686388137841168639488000
• The square root of 16394199920 is 128039.8372382593
• The cube root of 16394199920 is 2540.3686364337

Scales and comparisons

• 16,394,199,920 seconds is equal to 521 years, 14 weeks, 5 days, 16 hours, 25 minutes, 20 seconds.
• To count from 1 to 16,394,199,920 would take you about one thousand and forty-two 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 16394199920 cubic inches would be around 211.7 feet tall.

Recreational maths with 16394199920

• 16394199920 backwards is 02999149361
• The number of decimal digits it has is: 11
• The sum of 16394199920's digits is 53
• More coming soon!