81364113069912

Names of 81364113069912

• Cardinal: 81364113069912 can be written as Eighty-one trillion, three hundred sixty-four billion, one hundred thirteen million, sixty-nine thousand, nine hundred twelve.

Scientific notation

• Scientific notation: 8.1364113069912 × 10¹³

Factors of 81364113069912

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 939366263

Divisors of 81364113069912

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 401 802 1203 1604 2406 3208 3609 4812 7218 9624 10827 14436 21654 28872 43308 86616 939365857 1878731714 2818097571 3757463428 5636195142 7514926856 8454292713 11272390284 16908585426 22544780568 25362878139 33817170852 50725756278 67634341704 101451512556 202903025112 376685708657 753371417314 1130057125971 1506742834628 2260114251942 3013485669256 3390171377913 4520228503884 6780342755826 9040457007768 10170514133739 13560685511652 20341028267478 27121371023304 40682056534956 81364113069912
• Sum of all divisors σ(n): 226575044949600
• Sum of proper divisors (its aliquot sum) s(n): 145210931879688
• 81364113069912 is an abundant number, because the sum of its proper divisors (145210931879688) is greater than itself. Its abundance is 63846818809776

Bases of 81364113069912

• Binary: 10010100000000000001111000011101001011101011000₂
• Hexadecimal: 0x4A000F0E9758
• Base-36: SUA5O5UU0

Squares and roots of 81364113069912

• 81364113069912 squared (81364113069912²) is 6620118895653424740999687744
• 81364113069912 cubed (81364113069912³) is 538640102362206211696616557060301241558528
• The square root of 81364113069912 is 9020205.8219262379
• The cube root of 81364113069912 is 43332.2225414649

Scales and comparisons

• 81,364,113,069,912 seconds is equal to 2,587,127 years, 6 weeks, 1 day, 15 hours, 25 minutes, 12 seconds.
• To count from 1 to 81,364,113,069,912 would take you about six million, four hundred sixty-seven thousand, eight hundred seventeen 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 81364113069912 cubic inches would be around 3611 feet tall.

Recreational maths with 81364113069912

• 81364113069912 backwards is 21996031146318
• 81364113069912 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81364113069912's digits is 54
• More coming soon!