661324221018

Names of 661324221018

• Cardinal: 661324221018 can be written as Six hundred sixty-one billion, three hundred twenty-four million, two hundred twenty-one thousand and eighteen.

Scientific notation

• Scientific notation: 6.61324221018 × 10¹¹

Factors of 661324221018

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 3440664

Divisors of 661324221018

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 6 9 18 59 118 177 181 354 362 531 543 1062 1086 1629 3258 10679 21358 32037 64074 96111 192222 3440419 6880838 10321257 20642514 30963771 61927542 202984721 405969442 608954163 622715839 1217908326 1245431678 1826862489 1868147517 3653724978 3736295034 5604442551 11208885102 36740234501 73480469002 110220703503 220441407006 330662110509 661324221018
• Sum of all divisors σ(n): 1465206069600
• Sum of proper divisors (its aliquot sum) s(n): 803881848582
• 661324221018 is an abundant number, because the sum of its proper divisors (803881848582) is greater than itself. Its abundance is 142557627564

Bases of 661324221018

• Binary: 1001100111111001111111101100101001011010₂
• Hexadecimal: 0x99F9FECA5A
• Base-36: 8FT3D6QI

Squares and roots of 661324221018

• 661324221018 squared (661324221018²) is 437349725305064512956324
• 661324221018 cubed (661324221018³) is 289229966399808071441076537556817832
• The square root of 661324221018 is 813218.4337667217
• The cube root of 661324221018 is 8712.4067538619

Scales and comparisons

• 661,324,221,018 seconds is equal to 21,028 years, 3 weeks, 2 days, 12 hours, 30 minutes, 18 seconds.
• To count from 1 to 661,324,221,018 would take you about forty-two thousand and fifty-six 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 661324221018 cubic inches would be around 726 feet tall.

Recreational maths with 661324221018

• 661324221018 backwards is 810122423166
• The number of decimal digits it has is: 12
• The sum of 661324221018's digits is 36
• More coming soon!