18388885856

Names of 18388885856

• Cardinal: 18388885856 can be written as Eighteen billion, three hundred eighty-eight million, eight hundred eighty-five thousand, eight hundred fifty-six.

Scientific notation

• Scientific notation: 1.8388885856 × 10¹⁰

Factors of 18388885856

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1783

Divisors of 18388885856

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 8 11 16 17 22 32 34 44 68 88 136 176 187 272 352 374 544 748 1496 1753 2992 3506 5984 7012 14024 19283 28048 29801 38566 56096 59602 77132 119204 154264 238408 308528 327811 476816 617056 655622 953632 1311244 2622488 3073009 5244976 6146018 10489952 12292036 24584072 33803099 49168144 52241153 67606198 98336288 104482306 135212396 208964612 270424792 417929224 540849584 574652683 835858448 1081699168 1149305366 1671716896 2298610732 4597221464 9194442928 18388885856
• Sum of all divisors σ(n): 41841374904
• Sum of proper divisors (its aliquot sum) s(n): 23452489048
• 18388885856 is an abundant number, because the sum of its proper divisors (23452489048) is greater than itself. Its abundance is 5063603192

Bases of 18388885856

• Binary: 10001001000000100000010000101100000₂
• Hexadecimal: 0x448102160
• Base-36: 8G49N4W

Squares and roots of 18388885856

• 18388885856 squared (18388885856²) is 338151123024996852736
• 18388885856 cubed (18388885856³) is 6218222403384880559721545302016
• The square root of 18388885856 is 135605.6261959657
• The cube root of 18388885856 is 2639.4805880497

Scales and comparisons

• 18,388,885,856 seconds is equal to 584 years, 36 weeks, 6 days, 7 hours, 50 minutes, 56 seconds.
• To count from 1 to 18,388,885,856 would take you about one thousand, one hundred sixty-nine 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 18388885856 cubic inches would be around 220 feet tall.

Recreational maths with 18388885856

• 18388885856 backwards is 65858888381
• 18388885856 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18388885856's digits is 68
• More coming soon!