18169221768

Names of 18169221768

• Cardinal: 18169221768 can be written as Eighteen billion, one hundred sixty-nine million, two hundred twenty-one thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8169221768 × 10¹⁰

Factors of 18169221768

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 11518

Divisors of 18169221768

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 8 12 24 31 62 93 124 186 248 372 744 2819 5638 8457 8663 11276 16914 17326 22552 25989 33828 34652 51978 67656 69304 87389 103956 174778 207912 262167 268553 349556 524334 537106 699112 805659 1048668 1074212 1611318 2097336 2148424 3222636 6445272 24420997 48841994 73262991 97683988 146525982 195367976 293051964 586103928 757050907 1514101814 2271152721 3028203628 4542305442 6056407256 9084610884 18169221768
• Sum of all divisors σ(n): 46910361600
• Sum of proper divisors (its aliquot sum) s(n): 28741139832
• 18169221768 is an abundant number, because the sum of its proper divisors (28741139832) is greater than itself. Its abundance is 10571918064

Bases of 18169221768

• Binary: 10000111010111110000101001010001000₂
• Hexadecimal: 0x43AF85288
• Base-36: 8CHHH8O

Squares and roots of 18169221768

• 18169221768 squared (18169221768²) is 330120619654765045824
• 18169221768 cubed (18169221768³) is 5998034748697005715510938296832
• The square root of 18169221768 is 134793.2556473061
• The cube root of 18169221768 is 2628.9285041321

Scales and comparisons

• 18,169,221,768 seconds is equal to 577 years, 37 weeks, 4 days, 22 hours, 2 minutes, 48 seconds.
• To count from 1 to 18,169,221,768 would take you about one thousand, one hundred fifty-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 18169221768 cubic inches would be around 219.1 feet tall.

Recreational maths with 18169221768

• 18169221768 backwards is 86712296181
• The number of decimal digits it has is: 11
• The sum of 18169221768's digits is 51
• More coming soon!