821468996987366321

Names of 821468996987366321

• Cardinal: 821468996987366321 can be written as Eight hundred twenty-one quadrillion, four hundred sixty-eight trillion, nine hundred ninety-six billion, nine hundred eighty-seven million, three hundred sixty-six thousand, three hundred twenty-one.

Scientific notation

• Scientific notation: 8.21468996987366321 × 10¹⁷

Factors of 821468996987366321

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 22536739

Divisors of 821468996987366321

• Number of divisors d(n): 48
• Complete list of divisors:
  1 11 37 121 407 1259 4477 6469 13849 46583 71159 152339 239353 512413 782749 2632883 5636543 8144471 22528963 28961713 89589181 247818593 301345427 833571631 985480991 2726004523 3314799697 9169287941 28363964417 36462796667 100862167351 145739861647 312003608587 1049466683429 1603138478117 3432039694457 5392374880939 11544133517719 17634523259287 59316123690329 126985468694909 183486485813573 652477360593619 2018351343949303 6788999975102201 22201864783442333 74678999726124211 821468996987366321
• Sum of all divisors σ(n): 928220775101323200
• Sum of proper divisors (its aliquot sum) s(n): 106751778113956879
• 821468996987366321 is a deficient number, because the sum of its proper divisors (106751778113956879) is less than itself. Its deficiency is 714717218873409442

Bases of 821468996987366321

• Binary: 101101100110011100011011001101001111011011011010101110110001₂
• Hexadecimal: 0xB6671B34F6DABB1
• Base-36: 68OIGFGHAY0H

Squares and roots of 821468996987366321

• 821468996987366321 squared (821468996987366321²) is 674811313011429657767059683845075041
• 821468996987366321 cubed (821468996987366321³) is 554336572455226820987804852500042008500463713201094161
• The square root of 821468996987366321 is 906349268.7630780679
• The cube root of 821468996987366321 is 936548.7584437875

Scales and comparisons

• 821,468,996,987,366,321 seconds is equal to 26,120,173,133 years, 39 weeks, 2 days, 2 hours, 38 minutes, 41 seconds.
• To count from 1 to 821,468,996,987,366,321 would take you about seventy-eight billion, three hundred sixty million, five hundred nineteen thousand, four hundred one 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 821468996987366321 cubic inches would be around 78045.7 feet tall.

Recreational maths with 821468996987366321

• 821468996987366321 backwards is 123663789699864128
• The number of decimal digits it has is: 18
• The sum of 821468996987366321's digits is 98
• More coming soon!