27991424720

Names of 27991424720

• Cardinal: 27991424720 can be written as Twenty-seven billion, nine hundred ninety-one million, four hundred twenty-four thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.799142472 × 10¹⁰

Factors of 27991424720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2630806

Divisors of 27991424720

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 19 20 28 35 38 40 56 70 76 80 95 112 133 140 152 190 266 280 304 380 532 560 665 760 1064 1330 1520 2128 2660 5320 10640 2630773 5261546 10523092 13153865 18415411 21046184 26307730 36830822 42092368 49984687 52615460 73661644 92077055 99969374 105230920 147323288 184154110 199938748 210461840 249923435 294646576 349892809 368308220 399877496 499846870 699785618 736616440 799754992 999693740 1399571236 1473232880 1749464045 1999387480 2799142472 3498928090 3998774960 5598284944 6997856180 13995712360 27991424720
• Sum of all divisors σ(n): 78291834240
• Sum of proper divisors (its aliquot sum) s(n): 50300409520
• 27991424720 is an abundant number, because the sum of its proper divisors (50300409520) is greater than itself. Its abundance is 22308984800

Bases of 27991424720

• Binary: 11010000100011010110011111011010000₂
• Hexadecimal: 0x6846B3ED0
• Base-36: CUXDDJK

Squares and roots of 27991424720

• 27991424720 squared (27991424720²) is 783519857855427078400
• 27991424720 cubed (27991424720³) is 21931837117785287708483138048000
• The square root of 27991424720 is 167306.3797946749
• The cube root of 27991424720 is 3036.2789449777

Scales and comparisons

• 27,991,424,720 seconds is equal to 890 years, 2 weeks, 19 hours, 45 minutes, 20 seconds.
• To count from 1 to 27,991,424,720 would take you about one thousand, seven hundred eighty 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 27991424720 cubic inches would be around 253 feet tall.

Recreational maths with 27991424720

• 27991424720 backwards is 02742419972
• The number of decimal digits it has is: 11
• The sum of 27991424720's digits is 47
• More coming soon!