640137730404800

Names of 640137730404800

• Cardinal: 640137730404800 can be written as Six hundred forty trillion, one hundred thirty-seven billion, seven hundred thirty million, four hundred four thousand, eight hundred.

Scientific notation

• Scientific notation: 6.401377304048 × 10¹⁴

Factors of 640137730404800

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 400086081510

Divisors of 640137730404800

• Number of divisors d(n): 42
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 160 200 320 400 800 1600 400086081503 800172163006 1600344326012 2000430407515 3200688652024 4000860815030 6401377304048 8001721630060 10002152037575 12802754608096 16003443260120 20004304075150 25605509216192 32006886520240 40008608150300 64013773040480 80017216300600 128027546080960 160034432601200 320068865202400 640137730404800
• Sum of all divisors σ(n): 1575138902881248
• Sum of proper divisors (its aliquot sum) s(n): 935001172476448
• 640137730404800 is an abundant number, because the sum of its proper divisors (935001172476448) is greater than itself. Its abundance is 294863442071648

Bases of 640137730404800

• Binary: 10010001100011001110101110000001110011000111000000₂
• Hexadecimal: 0x24633AE0731C0
• Base-36: 6AWR7OTEBK

Squares and roots of 640137730404800

• 640137730404800 squared (640137730404800²) is 409776313887808406371863040000
• 640137730404800 cubed (640137730404800³) is 262313279545786599791586785195829358592000000
• The square root of 640137730404800 is 25300943.2710482161
• The cube root of 640137730404800 is 86183.5690570801

Scales and comparisons

• 640,137,730,404,800 seconds is equal to 20,354,399 years, 39 weeks, 7 hours, 33 minutes, 20 seconds.
• To count from 1 to 640,137,730,404,800 would take you about fifty million, eight hundred eighty-five thousand, nine hundred ninety-nine 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 640137730404800 cubic inches would be around 7182 feet tall.

Recreational maths with 640137730404800

• 640137730404800 backwards is 008404037731046
• The number of decimal digits it has is: 15
• The sum of 640137730404800's digits is 47
• More coming soon!