640042778674243056

Names of 640042778674243056

• Cardinal: 640042778674243056 can be written as Six hundred forty quadrillion, forty-two trillion, seven hundred seventy-eight billion, six hundred seventy-four million, two hundred forty-three thousand and fifty-six.

Scientific notation

• Scientific notation: 6.40042778674243056 × 10¹⁷

Factors of 640042778674243056

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 272127031749265

Divisors of 640042778674243056

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 49 56 84 98 112 147 168 196 294 336 392 588 784 1176 2352 272127031749253 544254063498506 816381095247759 1088508126997012 1632762190495518 1904889222244771 2177016253994024 3265524380991036 3809778444489542 4354032507988048 5714667666734313 6531048761982072 7619556888979084 11429335333468626 13062097523964144 13334224555713397 15239113777958168 22858670666937252 26668449111426794 30478227555916336 40002673667140191 45717341333874504 53336898222853588 80005347334280382 91434682667749008 106673796445707176 160010694668560764 213347592891414352 320021389337121528 640042778674243056
• Sum of all divisors σ(n): 1923393860403727272
• Sum of proper divisors (its aliquot sum) s(n): 1283351081729484216
• 640042778674243056 is an abundant number, because the sum of its proper divisors (1283351081729484216) is greater than itself. Its abundance is 643308303055241160

Bases of 640042778674243056

• Binary: 100011100001111000111000010000011111111011101010010111110000₂
• Hexadecimal: 0x8E1E3841FEEA5F0
• Base-36: 4V2489DBT9TC

Squares and roots of 640042778674243056

• 640042778674243056 squared (640042778674243056²) is 409654758533046081673502834564219136
• 640042778674243056 cubed (640042778674243056³) is 262196569948616895214586710321725380607441346510319616
• The square root of 640042778674243056 is 800026736.2246358427
• The cube root of 640042778674243056 is 861793.0763890861

Scales and comparisons

• 640,042,778,674,243,056 seconds is equal to 20,351,380,579 years, 27 weeks, 6 days, 21 hours, 17 minutes, 36 seconds.
• To count from 1 to 640,042,778,674,243,056 would take you about sixty-one billion, fifty-four million, one hundred forty-one thousand, seven hundred thirty-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 640042778674243056 cubic inches would be around 71816.1 feet tall.

Recreational maths with 640042778674243056

• 640042778674243056 backwards is 650342476877240046
• The number of decimal digits it has is: 18
• The sum of 640042778674243056's digits is 75
• More coming soon!