821228136708

Names of 821228136708

• Cardinal: 821228136708 can be written as Eight hundred twenty-one billion, two hundred twenty-eight million, one hundred thirty-six thousand, seven hundred eight.

Scientific notation

• Scientific notation: 8.21228136708 × 10¹¹

Factors of 821228136708

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 581704

Divisors of 821228136708

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 294 588 2411 4822 7233 9644 14466 16877 28932 33754 50631 67508 101262 118139 202524 236278 354417 472556 579281 708834 1158562 1417668 1737843 2317124 3475686 4054967 6951372 8109934 12164901 16219868 24329802 28384769 48659604 56769538 85154307 113539076 170308614 340617228 1396646491 2793292982 4189939473 5586585964 8379878946 9776525437 16759757892 19553050874 29329576311 39106101748 58659152622 68435678059 117318305244 136871356118 205307034177 273742712236 410614068354 821228136708
• Sum of all divisors σ(n): 2229976181664
• Sum of proper divisors (its aliquot sum) s(n): 1408748044956
• 821228136708 is an abundant number, because the sum of its proper divisors (1408748044956) is greater than itself. Its abundance is 587519908248

Bases of 821228136708

• Binary: 1011111100110101000000101110100100000100₂
• Hexadecimal: 0xBF3502E904
• Base-36: AH9M11QC

Squares and roots of 821228136708

• 821228136708 squared (821228136708²) is 674415652520893537077264
• 821228136708 cubed (821228136708³) is 553849109686443382493201026950606912
• The square root of 821228136708 is 906216.3851465057
• The cube root of 821228136708 is 9364.5721534763

Scales and comparisons

• 821,228,136,708 seconds is equal to 26,112 years, 26 weeks, 5 days, 6 hours, 51 minutes, 48 seconds.
• To count from 1 to 821,228,136,708 would take you about fifty-two thousand, two hundred twenty-five 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 821228136708 cubic inches would be around 780.4 feet tall.

Recreational maths with 821228136708

• 821228136708 backwards is 807631822128
• The number of decimal digits it has is: 12
• The sum of 821228136708's digits is 48
• More coming soon!