18008505450

Names of 18008505450

• Cardinal: 18008505450 can be written as Eighteen billion, eight million, five hundred five thousand, four hundred fifty.

Scientific notation

• Scientific notation: 1.800850545 × 10¹⁰

Factors of 18008505450

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 181121

Divisors of 18008505450

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 5 6 9 10 13 15 17 18 25 26 30 34 39 45 50 51 65 75 78 85 90 102 117 130 150 153 170 195 221 225 234 255 306 325 390 425 442 450 510 585 650 663 765 850 975 1105 1170 1275 1326 1530 1950 1989 2210 2550 2925 3315 3825 3978 5525 5850 6630 7650 9945 11050 16575 19890 33150 49725 99450 181081 362162 543243 905405 1086486 1629729 1810810 2354053 2716215 3078377 3259458 4527025 4708106 5432430 6156754 7062159 8148645 9054050 9235131 11770265 13581075 14124318 15391885 16297290 18470262 21186477 23540530 27162150 27705393 30783770 35310795 40018901 40743225 42372954 46175655 55410786 58851325 70621590 76959425 80037802 81486450 92351310 105932385 117702650 120056703 138526965 153918850 176553975 200094505 211864770 230878275 240113406 277053930 353107950 360170109 400189010 461756550 529661925 600283515 692634825 720340218 1000472525 1059323850 1200567030 1385269650 1800850545 2000945050 3001417575 3601701090 6002835150 9004252725 18008505450
• Sum of all divisors σ(n): 55169890776
• Sum of proper divisors (its aliquot sum) s(n): 37161385326
• 18008505450 is an abundant number, because the sum of its proper divisors (37161385326) is greater than itself. Its abundance is 19152879876

Bases of 18008505450

• Binary: 10000110001011000111111110001101010₂
• Hexadecimal: 0x43163FC6A
• Base-36: 89TSRQI

Squares and roots of 18008505450

• 18008505450 squared (18008505450²) is 324306268542679702500
• 18008505450 cubed (18008505450³) is 5840271204520010980075628625000
• The square root of 18008505450 is 134195.7728469865
• The cube root of 18008505450 is 2621.1541178175

Scales and comparisons

• 18,008,505,450 seconds is equal to 572 years, 31 weeks, 6 days, 18 hours, 37 minutes, 30 seconds.
• To count from 1 to 18,008,505,450 would take you about one thousand, one hundred forty-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 18008505450 cubic inches would be around 218.4 feet tall.

Recreational maths with 18008505450

• 18008505450 backwards is 05450580081
• The number of decimal digits it has is: 11
• The sum of 18008505450's digits is 36
• More coming soon!