428286728128

Names of 428286728128

• Cardinal: 428286728128 can be written as Four hundred twenty-eight billion, two hundred eighty-six million, seven hundred twenty-eight thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 4.28286728128 × 10¹¹

Factors of 428286728128

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 49745

Divisors of 428286728128

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 49 56 64 98 112 196 224 392 448 784 1568 2917 3136 5834 11668 20419 23336 40838 46672 46819 81676 93344 93638 142933 163352 186688 187276 285866 326704 327733 374552 571732 653408 655466 749104 1143464 1306816 1310932 1498208 2286928 2294131 2621864 2996416 4573856 4588262 5243728 9147712 9176524 10487456 18353048 20974912 36706096 73412192 136571023 146824384 273142046 546284092 955997161 1092568184 1911994322 2185136368 3823988644 4370272736 6691980127 7647977288 8740545472 13383960254 15295954576 26767920508 30591909152 53535841016 61183818304 107071682032 214143364064 428286728128
• Sum of all divisors σ(n): 988997681640
• Sum of proper divisors (its aliquot sum) s(n): 560710953512
• 428286728128 is an abundant number, because the sum of its proper divisors (560710953512) is greater than itself. Its abundance is 132424225384

Bases of 428286728128

• Binary: 110001110110111111000001101011111000000₂
• Hexadecimal: 0x63B7E0D7C0
• Base-36: 5GR2UYF4

Squares and roots of 428286728128

• 428286728128 squared (428286728128²) is 183429521490587386384384
• 428286728128 cubed (428286728128³) is 78560429601288333263434759112753152
• The square root of 428286728128 is 654436.1910285831
• The cube root of 428286728128 is 7537.8045479221

Scales and comparisons

• 428,286,728,128 seconds is equal to 13,618 years, 10 weeks, 7 hours, 35 minutes, 28 seconds.
• To count from 1 to 428,286,728,128 would take you about twenty-seven thousand, two hundred thirty-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 428286728128 cubic inches would be around 628.2 feet tall.

Recreational maths with 428286728128

• 428286728128 backwards is 821827682824
• The number of decimal digits it has is: 12
• The sum of 428286728128's digits is 58
• More coming soon!