428139972468

Names of 428139972468

• Cardinal: 428139972468 can be written as Four hundred twenty-eight billion, one hundred thirty-nine million, nine hundred seventy-two thousand, four hundred sixty-eight.

Scientific notation

• Scientific notation: 4.28139972468 × 10¹¹

Factors of 428139972468

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 914829019

Divisors of 428139972468

• Number of divisors d(n): 36
• Complete list of divisors:
  1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 914829001 1829658002 2744487003 3659316004 5488974006 8233461009 10977948012 11892777013 16466922018 23785554026 32933844036 35678331039 47571108052 71356662078 107034993117 142713324156 214069986234 428139972468
• Sum of all divisors σ(n): 1165492148548
• Sum of proper divisors (its aliquot sum) s(n): 737352176080
• 428139972468 is an abundant number, because the sum of its proper divisors (737352176080) is greater than itself. Its abundance is 309212203612

Bases of 428139972468

• Binary: 110001110101111001000011000011101110100₂
• Hexadecimal: 0x63AF218774
• Base-36: 5GONHH10

Squares and roots of 428139972468

• 428139972468 squared (428139972468²) is 183303836024899798011024
• 428139972468 cubed (428139972468³) is 78479699308979386082898576520487232
• The square root of 428139972468 is 654324.0576870149
• The cube root of 428139972468 is 7536.9434878087

Scales and comparisons

• 428,139,972,468 seconds is equal to 13,613 years, 27 weeks, 2 days, 18 hours, 7 minutes, 48 seconds.
• To count from 1 to 428,139,972,468 would take you about twenty-seven thousand, two hundred twenty-seven 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 428139972468 cubic inches would be around 628.1 feet tall.

Recreational maths with 428139972468

• 428139972468 backwards is 864279931824
• The number of decimal digits it has is: 12
• The sum of 428139972468's digits is 63
• More coming soon!