42128130

Names of 42128130

• Cardinal: 42128130 can be written as Forty-two million, one hundred twenty-eight thousand, one hundred thirty.

Scientific notation

• Scientific notation: 4.212813 × 10⁷

Factors of 42128130

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 6759

Divisors of 42128130

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 10 11 15 19 22 30 33 38 55 57 66 95 110 114 165 190 209 285 330 418 570 627 1045 1254 2090 3135 6270 6719 13438 20157 33595 40314 67190 73909 100785 127661 147818 201570 221727 255322 369545 382983 443454 638305 739090 765966 1108635 1276610 1404271 1914915 2217270 2808542 3829830 4212813 7021355 8425626 14042710 21064065 42128130
• Sum of all divisors σ(n): 116121600
• Sum of proper divisors (its aliquot sum) s(n): 73993470
• 42128130 is an abundant number, because the sum of its proper divisors (73993470) is greater than itself. Its abundance is 31865340

Bases of 42128130

• Binary: 10100000101101001100000010₂
• Hexadecimal: 0x282D302
• Base-36: P2Y9U

Squares and roots of 42128130

• 42128130 squared (42128130²) is 1774779337296900
• 42128130 cubed (42128130³) is 74768134642957651797000
• The square root of 42128130 is 6490.6186145853
• The cube root of 42128130 is 347.9557844471

Scales and comparisons

• 42,128,130 seconds is equal to 1 year, 17 weeks, 4 days, 14 hours, 15 minutes, 30 seconds.
• To count from 1 to 42,128,130 would take you about 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 42128130 cubic inches would be around 29 feet tall.

Recreational maths with 42128130

• 42128130 backwards is 03182124
• The number of decimal digits it has is: 8
• The sum of 42128130's digits is 21
• More coming soon!