821999813095993264

Names of 821999813095993264

• Cardinal: 821999813095993264 can be written as Eight hundred twenty-one quadrillion, nine hundred ninety-nine trillion, eight hundred thirteen billion, ninety-five million, nine hundred ninety-three thousand, two hundred sixty-four.

Scientific notation

• Scientific notation: 8.21999813095993264 × 10¹⁷

Factors of 821999813095993264

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 5258277631

Divisors of 821999813095993264

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 4 8 16 19 38 76 152 304 514277 1028554 2057108 4114216 8228432 9771263 19542526 39085052 78170104 156340208 5257763333 10515526666 21031053332 42062106664 84124213328 99897503327 199795006654 399590013308 799180026616 1598360053232 2703946753605241 5407893507210482 10815787014420964 21631574028841928 43263148057683856 51374988318499579 102749976636999158 205499953273998316 410999906547996632 821999813095993264
• Sum of all divisors σ(n): 1676450247367368240
• Sum of proper divisors (its aliquot sum) s(n): 854450434271374976
• 821999813095993264 is an abundant number, because the sum of its proper divisors (854450434271374976) is greater than itself. Its abundance is 32450621175381712

Bases of 821999813095993264

• Binary: 101101101000010101000111100110010001000001100010111110110000₂
• Hexadecimal: 0xB68547991062FB0
• Base-36: 68TQM50F44OG

Squares and roots of 821999813095993264

• 821999813095993264 squared (821999813095993264²) is 675683692729847859123733970733373696
• 821999813095993264 cubed (821999813095993264³) is 555411869135945482814870834025280054689495862810783744
• The square root of 821999813095993264 is 906642053.4565961021
• The cube root of 821999813095993264 is 936750.4410912923

Scales and comparisons

• 821,999,813,095,993,264 seconds is equal to 26,137,051,444 years, 4 weeks, 4 days, 1 hour, 41 minutes, 4 seconds.
• To count from 1 to 821,999,813,095,993,264 would take you about seventy-eight billion, four hundred eleven million, one hundred fifty-four thousand, three hundred thirty-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 821999813095993264 cubic inches would be around 78062.5 feet tall.

Recreational maths with 821999813095993264

• 821999813095993264 backwards is 462399590318999128
• The number of decimal digits it has is: 18
• The sum of 821999813095993264's digits is 97
• More coming soon!