640121648376

Names of 640121648376

• Cardinal: 640121648376 can be written as Six hundred forty billion, one hundred twenty-one million, six hundred forty-eight thousand, three hundred seventy-six.

Scientific notation

• Scientific notation: 6.40121648376 × 10¹¹

Factors of 640121648376

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 64580544

Divisors of 640121648376

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 21 24 28 42 56 59 84 118 168 177 236 354 413 472 708 826 1239 1416 1652 2478 3304 4956 9912 64580473 129160946 193741419 258321892 387482838 452063311 516643784 774965676 904126622 1356189933 1549931352 1808253244 2712379866 3616506488 3810247907 5424759732 7620495814 10849519464 11430743721 15240991628 22861487442 26671735349 30481983256 45722974884 53343470698 80015206047 91445949768 106686941396 160030412094 213373882792 320060824188 640121648376
• Sum of all divisors σ(n): 1859917651200
• Sum of proper divisors (its aliquot sum) s(n): 1219796002824
• 640121648376 is an abundant number, because the sum of its proper divisors (1219796002824) is greater than itself. Its abundance is 579674354448

Bases of 640121648376

• Binary: 1001010100001010001110010011010011111000₂
• Hexadecimal: 0x950A3934F8
• Base-36: 862FWGZC

Squares and roots of 640121648376

• 640121648376 squared (640121648376²) is 409755724719607383437376
• 640121648376 cubed (640121648376³) is 262293509939017568693473406088101376
• The square root of 640121648376 is 800076.0266224703
• The cube root of 640121648376 is 8618.2847327895

Scales and comparisons

• 640,121,648,376 seconds is equal to 20,353 years, 46 weeks, 1 day, 8 hours, 59 minutes, 36 seconds.
• To count from 1 to 640,121,648,376 would take you about forty thousand, seven hundred seven 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 640121648376 cubic inches would be around 718.2 feet tall.

Recreational maths with 640121648376

• 640121648376 backwards is 673846121046
• The number of decimal digits it has is: 12
• The sum of 640121648376's digits is 48
• More coming soon!