20218505742

Names of 20218505742

• Cardinal: 20218505742 can be written as Twenty billion, two hundred eighteen million, five hundred five thousand, seven hundred forty-two.

Scientific notation

• Scientific notation: 2.0218505742 × 10¹⁰

Factors of 20218505742

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 6678

Divisors of 20218505742

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 6 9 18 27 54 59 81 118 162 177 337 354 531 674 1011 1062 1593 2022 3033 3186 4779 6066 6277 9099 9558 12554 18198 18831 19883 27297 37662 39766 54594 56493 59649 112986 119298 169479 178947 338958 357894 370343 508437 536841 740686 1016874 1073682 1111029 1610523 2115349 2222058 3221046 3333087 4230698 6346047 6666174 9999261 12692094 19038141 19998522 29997783 38076282 57114423 59995566 114228846 124805591 171343269 249611182 342686538 374416773 748833546 1123250319 2246500638 3369750957 6739501914 10109252871 20218505742
• Sum of all divisors σ(n): 46216375920
• Sum of proper divisors (its aliquot sum) s(n): 25997870178
• 20218505742 is an abundant number, because the sum of its proper divisors (25997870178) is greater than itself. Its abundance is 5779364436

Bases of 20218505742

• Binary: 10010110101000111011110101000001110₂
• Hexadecimal: 0x4B51DEA0E
• Base-36: 9ADKQVI

Squares and roots of 20218505742

• 20218505742 squared (20218505742²) is 408787974439286970564
• 20218505742 cubed (20218505742³) is 8265082008461272844734018978488
• The square root of 20218505742 is 142191.7921048891
• The cube root of 20218505742 is 2724.2670976619

Scales and comparisons

• 20,218,505,742 seconds is equal to 642 years, 46 weeks, 11 hours, 35 minutes, 42 seconds.
• To count from 1 to 20,218,505,742 would take you about one thousand, two hundred eighty-five 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 20218505742 cubic inches would be around 227 feet tall.

Recreational maths with 20218505742

• 20218505742 backwards is 24750581202
• The number of decimal digits it has is: 11
• The sum of 20218505742's digits is 36
• More coming soon!