19968147990

Names of 19968147990

• Cardinal: 19968147990 can be written as Nineteen billion, nine hundred sixty-eight million, one hundred forty-seven thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 1.996814799 × 10¹⁰

Factors of 19968147990

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 31695490

Divisors of 19968147990

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 210 315 630 31695473 63390946 95086419 158477365 190172838 221868311 285259257 316954730 443736622 475432095 570518514 665604933 950864190 1109341555 1331209866 1426296285 1996814799 2218683110 2852592570 3328024665 3993629598 6656049330 9984073995 19968147990
• Sum of all divisors σ(n): 59333927328
• Sum of proper divisors (its aliquot sum) s(n): 39365779338
• 19968147990 is an abundant number, because the sum of its proper divisors (39365779338) is greater than itself. Its abundance is 19397631348

Bases of 19968147990

• Binary: 10010100110001100011100001000010110₂
• Hexadecimal: 0x4A631C216
• Base-36: 968IPLI

Squares and roots of 19968147990

• 19968147990 squared (19968147990²) is 398726934150541040100
• 19968147990 cubed (19968147990³) is 7961838428716988427285324399000
• The square root of 19968147990 is 141308.6975030199
• The cube root of 19968147990 is 2712.9758566569

Scales and comparisons

• 19,968,147,990 seconds is equal to 634 years, 48 weeks, 19 hours, 46 minutes, 30 seconds.
• To count from 1 to 19,968,147,990 would take you about one thousand, two hundred sixty-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 19968147990 cubic inches would be around 226.1 feet tall.

Recreational maths with 19968147990

• 19968147990 backwards is 09974186991
• 19968147990 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 19968147990's digits is 63
• More coming soon!