640067148736020

Names of 640067148736020

• Cardinal: 640067148736020 can be written as Six hundred forty trillion, sixty-seven billion, one hundred forty-eight million, seven hundred thirty-six thousand and twenty.

Scientific notation

• Scientific notation: 6.4006714873602 × 10¹⁴

Factors of 640067148736020

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1885727

Divisors of 640067148736020

• Number of divisors d(n): 54
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 1885717 3771434 5657151 7542868 9428585 11314302 16971453 18857170 22628604 28285755 33942906 37714340 56571510 67885812 84857265 113143020 169714530 339429060 3555928604089 7111857208178 10667785812267 14223714416356 17779643020445 21335571624534 32003357436801 35559286040890 42671143249068 53338929061335 64006714873602 71118572081780 106677858122670 128013429747204 160016787184005 213355716245340 320033574368010 640067148736020
• Sum of all divisors σ(n): 1941538047434622
• Sum of proper divisors (its aliquot sum) s(n): 1301470898698602
• 640067148736020 is an abundant number, because the sum of its proper divisors (1301470898698602) is greater than itself. Its abundance is 661403749962582

Bases of 640067148736020

• Binary: 10010001100010001100111111000010000110011000010100₂
• Hexadecimal: 0x246233F086614
• Base-36: 6AVUSEBA50

Squares and roots of 640067148736020

• 640067148736020 squared (640067148736020²) is 409685954891058349083645440400
• 640067148736020 cubed (640067148736020³) is 262226521024313424718474116572576696243208000
• The square root of 640067148736020 is 25299548.3899618255
• The cube root of 640067148736020 is 86180.4014035059

Scales and comparisons

• 640,067,148,736,020 seconds is equal to 20,352,155 years, 24 weeks, 3 days, 20 hours, 27 minutes.
• To count from 1 to 640,067,148,736,020 would take you about fifty million, eight hundred eighty thousand, three hundred eighty-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 640067148736020 cubic inches would be around 7181.7 feet tall.

Recreational maths with 640067148736020

• 640067148736020 backwards is 020637841760046
• The number of decimal digits it has is: 15
• The sum of 640067148736020's digits is 54
• More coming soon!