20985816180

Names of 20985816180

• Cardinal: 20985816180 can be written as Twenty billion, nine hundred eighty-five million, eight hundred sixteen thousand, one hundred eighty.

Scientific notation

• Scientific notation: 2.098581618 × 10¹⁰

Factors of 20985816180

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 364871

Divisors of 20985816180

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 137 140 210 274 411 420 548 685 822 959 1370 1644 1918 2055 2740 2877 3836 4110 4795 5754 8220 9590 11508 14385 19180 28770 57540 364717 729434 1094151 1458868 1823585 2188302 2553019 3647170 4376604 5106038 5470755 7294340 7659057 10212076 10941510 12765095 15318114 21883020 25530190 30636228 38295285 49966229 51060380 76590570 99932458 149898687 153181140 199864916 249831145 299797374 349763603 499662290 599594748 699527206 749493435 999324580 1049290809 1399054412 1498986870 1748818015 2098581618 2997973740 3497636030 4197163236 5246454045 6995272060 10492908090 20985816180
• Sum of all divisors σ(n): 67644976896
• Sum of proper divisors (its aliquot sum) s(n): 46659160716
• 20985816180 is an abundant number, because the sum of its proper divisors (46659160716) is greater than itself. Its abundance is 25673344536

Bases of 20985816180

• Binary: 10011100010110110100010010001110100₂
• Hexadecimal: 0x4E2DA2474
• Base-36: 9N2EVEC

Squares and roots of 20985816180

• 20985816180 squared (20985816180²) is 440404480740749792400
• 20985816180 cubed (20985816180³) is 9242247477673725378679561032000
• The square root of 20985816180 is 144864.8203671271
• The cube root of 20985816180 is 2758.3028922951

Scales and comparisons

• 20,985,816,180 seconds is equal to 667 years, 14 weeks, 5 days, 9 hours, 23 minutes.
• To count from 1 to 20,985,816,180 would take you about one thousand, three hundred thirty-four 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 20985816180 cubic inches would be around 229.9 feet tall.

Recreational maths with 20985816180

• 20985816180 backwards is 08161858902
• The number of decimal digits it has is: 11
• The sum of 20985816180's digits is 48
• More coming soon!