82145840
82,145,840 is an even composite number composed of four prime numbers multiplied together.
82145840 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixty divisors.
Prime factorization of 82145840:
24 × 5 × 7 × 3832
(2 × 2 × 2 × 2 × 5 × 7 × 383 × 383)See below for interesting mathematical facts about the number 82145840 from the Numbermatics database.
Names of 82145840
- Cardinal: 82145840 can be written as Eighty-two million, one hundred forty-five thousand, eight hundred forty.
Scientific notation
- Scientific notation: 8.214584 × 107
Factors of 82145840
Divisors of 82145840
- Number of divisors d(n): 60
-
Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 383 560 766 1532 1915 2681 3064 3830 5362 6128 7660 10724 13405 15320 21448 26810 30640 42896 53620 107240 146689 214480 293378 586756 733445 1026823 1173512 1466890 2053646 2347024 2933780 4107292 5134115 5867560 8214584 10268230 11735120 16429168 20536460 41072920 82145840
- Sum of all divisors σ(n): 218844624
- Sum of proper divisors (its aliquot sum) s(n): 136698784
- 82145840 is an abundant number, because the sum of its proper divisors (136698784) is greater than itself. Its abundance is 54552944
Bases of 82145840
- Binary: 1001110010101110010001100002
- Hexadecimal: 0x4E57230
- Base-36: 1CWO4W
Squares and roots of 82145840
- 82145840 squared (821458402) is 6747939029305600
- 82145840 cubed (821458403) is 554315119831093128704000
-
The
square root of 82145840 is 9063.4342277087 -
The
cube root of 82145840 is 434.7055566761
Scales and comparisons
How big is 82145840?- 82,145,840 seconds is equal to 2 years, 31 weeks, 5 days, 18 hours, 17 minutes, 20 seconds.
-
To count from 1 to 82,145,840 would take you about three 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 82145840 cubic inches would be around 36.2 feet tall.
Recreational maths with 82145840
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