18205655742

Names of 18205655742

• Cardinal: 18205655742 can be written as Eighteen billion, two hundred five million, six hundred fifty-five thousand, seven hundred forty-two.

Scientific notation

• Scientific notation: 1.8205655742 × 10¹⁰

Factors of 18205655742

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2203563

Divisors of 18205655742

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 6 9 17 18 27 34 51 54 81 102 153 162 243 306 459 486 918 1377 2754 4131 8262 2203541 4407082 6610623 13221246 19831869 37460197 39663738 59495607 74920394 112380591 118991214 178486821 224761182 337141773 356973642 535460463 674283546 1011425319 1070920926 2022850638 3034275957 6068551914 9102827871 18205655742
• Sum of all divisors σ(n): 43312821552
• Sum of proper divisors (its aliquot sum) s(n): 25107165810
• 18205655742 is an abundant number, because the sum of its proper divisors (25107165810) is greater than itself. Its abundance is 6901510068

Bases of 18205655742

• Binary: 10000111101001001000100001010111110₂
• Hexadecimal: 0x43D2442BE
• Base-36: 8D36DVI

Squares and roots of 18205655742

• 18205655742 squared (18205655742²) is 331445900996217570564
• 18205655742 cubed (18205655742³) is 6034189970634151933819776778488
• The square root of 18205655742 is 134928.3355785581
• The cube root of 18205655742 is 2630.6845573535

Scales and comparisons

• 18,205,655,742 seconds is equal to 578 years, 45 weeks, 6 days, 14 hours, 35 minutes, 42 seconds.
• To count from 1 to 18,205,655,742 would take you about one thousand, one hundred fifty-seven 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 18205655742 cubic inches would be around 219.2 feet tall.

Recreational maths with 18205655742

• 18205655742 backwards is 24755650281
• The number of decimal digits it has is: 11
• The sum of 18205655742's digits is 45
• More coming soon!