820973206728

Names of 820973206728

• Cardinal: 820973206728 can be written as Eight hundred twenty billion, nine hundred seventy-three million, two hundred six thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 8.20973206728 × 10¹¹

Factors of 820973206728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 737035

Divisors of 820973206728

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 324 648 1723 3446 5169 6892 10338 13784 15507 20676 31014 41352 46521 62028 93042 124056 139563 186084 279126 372168 558252 735307 1116504 1470614 2205921 2941228 4411842 5882456 6617763 8823684 13235526 17647368 19853289 26471052 39706578 52942104 59559867 79413156 119119734 158826312 238239468 476478936 1266933961 2533867922 3800801883 5067735844 7601603766 10135471688 11402405649 15203207532 22804811298 30406415064 34207216947 45609622596 68414433894 91219245192 102621650841 136828867788 205243301682 273657735576 410486603364 820973206728
• Sum of all divisors σ(n): 2300822850480
• Sum of proper divisors (its aliquot sum) s(n): 1479849643752
• 820973206728 is an abundant number, because the sum of its proper divisors (1479849643752) is greater than itself. Its abundance is 658876437024

Bases of 820973206728

• Binary: 1011111100100101110100001111110011001000₂
• Hexadecimal: 0xBF25D0FCC8
• Base-36: AH5E90I0

Squares and roots of 820973206728

• 820973206728 squared (820973206728²) is 673997006165255424465984
• 820973206728 cubed (820973206728³) is 553333483476561332121035671435940352
• The square root of 820973206728 is 906075.7179882927
• The cube root of 820973206728 is 9363.6030531923

Scales and comparisons

• 820,973,206,728 seconds is equal to 26,104 years, 21 weeks, 1 day, 16 hours, 58 minutes, 48 seconds.
• To count from 1 to 820,973,206,728 would take you about fifty-two thousand, two hundred eight 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 820973206728 cubic inches would be around 780.3 feet tall.

Recreational maths with 820973206728

• 820973206728 backwards is 827602379028
• 820973206728 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 820973206728's digits is 54
• More coming soon!