18020474387872

Names of 18020474387872

• Cardinal: 18020474387872 can be written as Eighteen trillion, twenty billion, four hundred seventy-four million, three hundred eighty-seven thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.8020474387872 × 10¹³

Factors of 18020474387872

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 452901

Divisors of 18020474387872

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 8 11 16 22 32 44 88 176 352 217369 235519 434738 471038 869476 942076 1738952 1884152 2391059 2590709 3477904 3768304 4782118 5181418 6955808 7536608 9564236 10362836 19128472 20725672 38256944 41451344 76513888 82902688 51194529511 102389059022 204778118044 409556236088 563139824621 819112472176 1126279649242 1638224944352 2252559298484 4505118596968 9010237193936 18020474387872
• Sum of all divisors σ(n): 38703406694400
• Sum of proper divisors (its aliquot sum) s(n): 20682932306528
• 18020474387872 is an abundant number, because the sum of its proper divisors (20682932306528) is greater than itself. Its abundance is 2662457918656

Bases of 18020474387872

• Binary: 100000110001110110111111110010111110110100000₂
• Hexadecimal: 0x1063B7F97DA0
• Base-36: 6DYHP6BOG

Squares and roots of 18020474387872

• 18020474387872 squared (18020474387872²) is 324737497163950733100688384
• 18020474387872 cubed (18020474387872³) is 5851923750424630423097793155204220878848
• The square root of 18020474387872 is 4245052.9311036865
• The cube root of 18020474387872 is 26217.3468576297

Scales and comparisons

• 18,020,474,387,872 seconds is equal to 572,995 years, 17 weeks, 6 days, 9 hours, 57 minutes, 52 seconds.
• To count from 1 to 18,020,474,387,872 would take you about one million, four hundred thirty-two thousand, four hundred eighty-eight 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 18020474387872 cubic inches would be around 2184.8 feet tall.

Recreational maths with 18020474387872

• 18020474387872 backwards is 27878347402081
• The number of decimal digits it has is: 14
• The sum of 18020474387872's digits is 61
• More coming soon!