81680599309920
81,680,599,309,920 is an even composite number composed of five prime numbers multiplied together.
81680599309920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 81680599309920:
25 × 3 × 5 × 132 × 1006910741
(2 × 2 × 2 × 2 × 2 × 3 × 5 × 13 × 13 × 1006910741)See below for interesting mathematical facts about the number 81680599309920 from the Numbermatics database.
Names of 81680599309920
- Cardinal: 81680599309920 can be written as Eighty-one trillion, six hundred eighty billion, five hundred ninety-nine million, three hundred nine thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 8.168059930992 × 1013
Factors of 81680599309920
- Number of distinct prime factors ω(n): 5
- Total number of prime factors Ω(n): 10
- Sum of prime factors: 1006910764
Divisors of 81680599309920
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 65 78 80 96 104 120 130 156 160 169 195 208 240 260 312 338 390 416 480 507 520 624 676 780 845 1014 1040 1248 1352 1560 1690 2028 2080 2535 2704 3120 3380 4056 5070 5408 6240 6760 8112 10140 13520 16224 20280 27040 40560 81120 1006910741 2013821482 3020732223 4027642964 5034553705 6041464446 8055285928 10069107410 12082928892 13089839633 15103661115 16110571856 20138214820 24165857784 26179679266 30207322230 32221143712 39269518899 40276429640 48331715568 52359358532 60414644460 65449198165 78539037798 80552859280 96663431136 104718717064 120829288920 130898396330 157078075596 161105718560 170167915229 196347594495 209437434128 241658577840 261796792660 314156151192 340335830458 392695188990 418874868256 483317155680 510503745687 523593585320 628312302384 680671660916 785390377980 850839576145 1021007491374 1047187170640 1256624604768 1361343321832 1570780755960 1701679152290 2042014982748 2094374341280 2552518728435 2722686643664 3141561511920 3403358304580 4084029965496 5105037456870 5445373287328 6283123023840 6806716609160 8168059930992 10210074913740 13613433218320 16336119861984 20420149827480 27226866436640 40840299654960 81680599309920
- Sum of all divisors σ(n): 278608174668432
- Sum of proper divisors (its aliquot sum) s(n): 196927575358512
- 81680599309920 is an abundant number, because the sum of its proper divisors (196927575358512) is greater than itself. Its abundance is 115246976048592
Bases of 81680599309920
- Binary: 100101001001001101111110001101101011110011000002
- Hexadecimal: 0x4A49BF1B5E60
- Base-36: SYBJRWCIO
Squares and roots of 81680599309920
- 81680599309920 squared (816805993099202) is 6671720303627703580210406400
- 81680599309920 cubed (816805993099203) is 544950112828472257926328434364242751488000
-
The
square root of 81680599309920 is 9037731.9782078069 -
The
cube root of 81680599309920 is 43388.3337210777
Scales and comparisons
How big is 81680599309920?- 81,680,599,309,920 seconds is equal to 2,597,190 years, 20 weeks, 6 days, 19 hours, 52 minutes.
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To count from 1 to 81,680,599,309,920 would take you about six million, four hundred ninety-two thousand, nine hundred seventy-six 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 81680599309920 cubic inches would be around 3615.7 feet tall.
Recreational maths with 81680599309920
- 81680599309920 backwards is 02990399508618
- The number of decimal digits it has is: 14
- The sum of 81680599309920's digits is 69
- More coming soon!
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