128835831720

Names of 128835831720

• Cardinal: 128835831720 can be written as One hundred twenty-eight billion, eight hundred thirty-five million, eight hundred thirty-one thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.2883583172 × 10¹¹

Factors of 128835831720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2142

Divisors of 128835831720

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 331 662 993 1324 1655 1801 1986 2648 3310 3602 3972 4965 5403 6620 7204 7944 9005 9930 10806 13240 14408 18010 19860 21612 27015 36020 39720 43224 54030 72040 108060 216120 596131 1192262 1788393 2384524 2980655 3243601 3576786 4769048 5961310 6487202 7153572 8941965 9730803 11922620 12974404 14307144 16218005 17883930 19461606 23845240 25948808 32436010 35767860 38923212 48654015 64872020 71535720 77846424 97308030 129744040 194616060 389232120 1073631931 2147263862 3220895793 4294527724 5368159655 6441791586 8589055448 10736319310 12883583172 16104478965 21472638620 25767166344 32208957930 42945277240 64417915860 128835831720
• Sum of all divisors σ(n): 387890566560
• Sum of proper divisors (its aliquot sum) s(n): 259054734840
• 128835831720 is an abundant number, because the sum of its proper divisors (259054734840) is greater than itself. Its abundance is 130218903120

Bases of 128835831720

• Binary: 1110111111111001101101100011110101000₂
• Hexadecimal: 0x1DFF36C7A8
• Base-36: 1N6PIZZC

Squares and roots of 128835831720

• 128835831720 squared (128835831720²) is 16598671534984158158400
• 128835831720 cubed (128835831720³) is 2138503652656773093361487504448000
• The square root of 128835831720 is 358937.0860192633
• The cube root of 128835831720 is 5050.6300128285

Scales and comparisons

• 128,835,831,720 seconds is equal to 4,096 years, 30 weeks, 1 day, 11 hours, 2 minutes.
• To count from 1 to 128,835,831,720 would take you about eight thousand, one hundred ninety-three 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 128835831720 cubic inches would be around 420.9 feet tall.

Recreational maths with 128835831720

• 128835831720 backwards is 027138538821
• The number of decimal digits it has is: 12
• The sum of 128835831720's digits is 48
• More coming soon!