18212594640

Names of 18212594640

• Cardinal: 18212594640 can be written as Eighteen billion, two hundred twelve million, five hundred ninety-four thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.821259464 × 10¹⁰

Factors of 18212594640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 579422

Divisors of 18212594640

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 131 240 262 393 524 655 786 1048 1310 1572 1965 2096 2620 3144 3930 5240 6288 7860 10480 15720 31440 579281 1158562 1737843 2317124 2896405 3475686 4634248 5792810 6951372 8689215 9268496 11585620 13902744 17378430 23171240 27805488 34756860 46342480 69513720 75885811 139027440 151771622 227657433 303543244 379429055 455314866 607086488 758858110 910629732 1138287165 1214172976 1517716220 1821259464 2276574330 3035432440 3642518928 4553148660 6070864880 9106297320 18212594640
• Sum of all divisors σ(n): 56890126656
• Sum of proper divisors (its aliquot sum) s(n): 38677532016
• 18212594640 is an abundant number, because the sum of its proper divisors (38677532016) is greater than itself. Its abundance is 20464937376

Bases of 18212594640

• Binary: 10000111101100011100010001111010000₂
• Hexadecimal: 0x43D8E23D0
• Base-36: 8D7B3YO

Squares and roots of 18212594640

• 18212594640 squared (18212594640²) is 331698603520956729600
• 18212594640 cubed (18212594640³) is 6041092208581261661184889344000
• The square root of 18212594640 is 134954.0464009879
• The cube root of 18212594640 is 2631.0187343341

Scales and comparisons

• 18,212,594,640 seconds is equal to 579 years, 5 weeks, 2 days, 22 hours, 4 minutes.
• To count from 1 to 18,212,594,640 would take you about one thousand, one hundred fifty-eight 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 18212594640 cubic inches would be around 219.3 feet tall.

Recreational maths with 18212594640

• 18212594640 backwards is 04649521281
• The number of decimal digits it has is: 11
• The sum of 18212594640's digits is 42
• More coming soon!