18268223792

Names of 18268223792

• Cardinal: 18268223792 can be written as Eighteen billion, two hundred sixty-eight million, two hundred twenty-three thousand, seven hundred ninety-two.

Scientific notation

• Scientific notation: 1.8268223792 × 10¹⁰

Factors of 18268223792

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 12546879

Divisors of 18268223792

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 4 7 8 13 14 16 26 28 52 56 91 104 112 182 208 364 728 1456 12546857 25093714 50187428 87827999 100374856 163109141 175655998 200749712 326218282 351311996 652436564 702623992 1141763987 1304873128 1405247984 2283527974 2609746256 4567055948 9134111896 18268223792
• Sum of all divisors σ(n): 43562690976
• Sum of proper divisors (its aliquot sum) s(n): 25294467184
• 18268223792 is an abundant number, because the sum of its proper divisors (25294467184) is greater than itself. Its abundance is 7026243392

Bases of 18268223792

• Binary: 10001000000110111101111100100110000₂
• Hexadecimal: 0x440DEF930
• Base-36: 8E4FFOW

Squares and roots of 18268223792

• 18268223792 squared (18268223792²) is 333728000514594859264
• 18268223792 cubed (18268223792³) is 6096617799057310051247496409088
• The square root of 18268223792 is 135159.9933116303
• The cube root of 18268223792 is 2633.6947684989

Scales and comparisons

• 18,268,223,792 seconds is equal to 580 years, 45 weeks, 2 days, 18 hours, 36 minutes, 32 seconds.
• To count from 1 to 18,268,223,792 would take you about one thousand, one hundred sixty-one 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 18268223792 cubic inches would be around 219.5 feet tall.

Recreational maths with 18268223792

• 18268223792 backwards is 29732286281
• The number of decimal digits it has is: 11
• The sum of 18268223792's digits is 50
• More coming soon!