12821396771962728

Names of 12821396771962728

• Cardinal: 12821396771962728 can be written as Twelve quadrillion, eight hundred twenty-one trillion, three hundred ninety-six billion, seven hundred seventy-one million, nine hundred sixty-two thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.2821396771962728 × 10¹⁶

Factors of 12821396771962728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1350115275

Divisors of 12821396771962728

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 36 72 131909 263818 395727 527636 791454 1055272 1187181 1582908 2374362 3165816 4748724 9497448 1349983361 2699966722 4049950083 5399933444 8099900166 10799866888 12149850249 16199800332 24299700498 32399600664 48599400996 97198801992 178074955166149 356149910332298 534224865498447 712299820664596 1068449730996894 1424599641329192 1602674596495341 2136899461993788 3205349192990682 4273798923987576 6410698385981364 12821396771962728
• Sum of all divisors σ(n): 34724879529876900
• Sum of proper divisors (its aliquot sum) s(n): 21903482757914172
• 12821396771962728 is an abundant number, because the sum of its proper divisors (21903482757914172) is greater than itself. Its abundance is 9082085985951444

Bases of 12821396771962728

• Binary: 101101100011001111111000010000000111011111111101101000₂
• Hexadecimal: 0x2D8CFE101DFF68
• Base-36: 3I8T0D3DE20

Squares and roots of 12821396771962728

• 12821396771962728 squared (12821396771962728²) is 164388215184096261783029421201984
• 12821396771962728 cubed (12821396771962728³) is 2107686531510086119005858749510968945008607652352
• The square root of 12821396771962728 is 113231606.7710898821
• The cube root of 12821396771962728 is 234051.6892896559

Scales and comparisons

• 12,821,396,771,962,728 seconds is equal to 407,680,758 years, 8 weeks, 3 days, 18 hours, 58 minutes, 48 seconds.
• To count from 1 to 12,821,396,771,962,728 would take you about one billion, two hundred twenty-three million, forty-two thousand, two hundred seventy-four 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 12821396771962728 cubic inches would be around 19504.3 feet tall.

Recreational maths with 12821396771962728

• 12821396771962728 backwards is 82726917769312821
• The number of decimal digits it has is: 17
• The sum of 12821396771962728's digits is 81
• More coming soon!