649940613820

Names of 649940613820

• Cardinal: 649940613820 can be written as Six hundred forty-nine billion, nine hundred forty million, six hundred thirteen thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 6.4994061382 × 10¹¹

Factors of 649940613820

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 24308

Divisors of 649940613820

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 5 10 20 241 482 964 1205 2410 4820 8887 15173 17774 30346 35548 44435 60692 75865 88870 151730 177740 303460 2141767 3656693 4283534 7313386 8567068 10708835 14626772 18283465 21417670 36566930 42835340 73133860 134842451 269684902 539369804 674212255 1348424510 2696849020 32497030691 64994061382 129988122764 162485153455 324970306910 649940613820
• Sum of all divisors σ(n): 1370783227968
• Sum of proper divisors (its aliquot sum) s(n): 720842614148
• 649940613820 is an abundant number, because the sum of its proper divisors (720842614148) is greater than itself. Its abundance is 70902000328

Bases of 649940613820

• Binary: 1001011101010011011110101011101010111100₂
• Hexadecimal: 0x97537ABABC
• Base-36: 8AKTUZ7G

Squares and roots of 649940613820

• 649940613820 squared (649940613820²) is 422422801492718374992400
• 649940613820 cubed (649940613820³) is 274549734893741392902953393834968000
• The square root of 649940613820 is 806188.9442432215
• The cube root of 649940613820 is 8662.1272370081

Scales and comparisons

• 649,940,613,820 seconds is equal to 20,666 years, 5 weeks, 1 day, 19 hours, 23 minutes, 40 seconds.
• To count from 1 to 649,940,613,820 would take you about forty-one thousand, three hundred thirty-two 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 649940613820 cubic inches would be around 721.8 feet tall.

Recreational maths with 649940613820

• 649940613820 backwards is 028316049946
• The number of decimal digits it has is: 12
• The sum of 649940613820's digits is 52
• More coming soon!