19819980990

Names of 19819980990

• Cardinal: 19819980990 can be written as Nineteen billion, eight hundred nineteen million, nine hundred eighty thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 1.981998099 × 10¹⁰

Factors of 19819980990

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 141428

Divisors of 19819980990

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 521 1042 1563 2605 3126 4689 5210 7815 9378 14067 15630 23445 28134 46890 70335 140670 140897 281794 422691 704485 845382 1268073 1408970 2113455 2536146 3804219 4226910 6340365 7608438 12680730 19021095 38042190 73407337 146814674 220222011 367036685 440444022 660666033 734073370 1101110055 1321332066 1981998099 2202220110 3303330165 3963996198 6606660330 9909990495 19819980990
• Sum of all divisors σ(n): 52955104320
• Sum of proper divisors (its aliquot sum) s(n): 33135123330
• 19819980990 is an abundant number, because the sum of its proper divisors (33135123330) is greater than itself. Its abundance is 13315142340

Bases of 19819980990

• Binary: 10010011101010111001110100010111110₂
• Hexadecimal: 0x49D5CE8BE
• Base-36: 93SAZ7I

Squares and roots of 19819980990

• 19819980990 squared (19819980990²) is 392831646443961380100
• 19819980990 cubed (19819980990³) is 7785915764789715653876164299000
• The square root of 19819980990 is 140783.4542480045
• The cube root of 19819980990 is 2706.2489458827

Scales and comparisons

• 19,819,980,990 seconds is equal to 630 years, 11 weeks, 22 hours, 16 minutes, 30 seconds.
• To count from 1 to 19,819,980,990 would take you about one thousand, two hundred sixty 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 19819980990 cubic inches would be around 225.5 feet tall.

Recreational maths with 19819980990

• 19819980990 backwards is 09908991891
• The number of decimal digits it has is: 11
• The sum of 19819980990's digits is 63
• More coming soon!