128135250

Names of 128135250

• Cardinal: 128135250 can be written as One hundred twenty-eight million, one hundred thirty-five thousand, two hundred fifty.

Scientific notation

• Scientific notation: 1.2813525 × 10⁸

Factors of 128135250

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 514

Divisors of 128135250

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 25 27 30 41 45 50 54 75 82 90 123 125 135 150 205 225 246 250 270 369 375 410 450 463 615 675 738 750 926 1025 1107 1125 1230 1350 1389 1845 2050 2214 2250 2315 2778 3075 3375 3690 4167 4630 5125 5535 6150 6750 6945 8334 9225 10250 11070 11575 12501 13890 15375 18450 18983 20835 23150 25002 27675 30750 34725 37966 41670 46125 55350 56949 57875 62505 69450 92250 94915 104175 113898 115750 125010 138375 170847 173625 189830 208350 276750 284745 312525 341694 347250 474575 512541 520875 569490 625050 854235 949150 1025082 1041750 1423725 1562625 1708470 2372875 2562705 2847450 3125250 4271175 4745750 5125410 7118625 8542350 12813525 14237250 21355875 25627050 42711750 64067625 128135250
• Sum of all divisors σ(n): 364815360
• Sum of proper divisors (its aliquot sum) s(n): 236680110
• 128135250 is an abundant number, because the sum of its proper divisors (236680110) is greater than itself. Its abundance is 108544860

Bases of 128135250

• Binary: 111101000110011000001010010₂
• Hexadecimal: 0x7A33052
• Base-36: 24ADSI

Squares and roots of 128135250

• 128135250 squared (128135250²) is 16418642292562500
• 128135250 cubed (128135250³) is 2103806834818069078125000
• The square root of 128135250 is 11319.6841828737
• The cube root of 128135250 is 504.1458619773

Scales and comparisons

• 128,135,250 seconds is equal to 4 years, 3 weeks, 6 days, 1 hour, 7 minutes, 30 seconds.
• To count from 1 to 128,135,250 would take you about six 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 128135250 cubic inches would be around 42 feet tall.

Recreational maths with 128135250

• 128135250 backwards is 052531821
• 128135250 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 128135250's digits is 27
• More coming soon!