138247785
138,247,785 is an odd composite number composed of five prime numbers multiplied together.
138247785 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 138247785:
32 × 5 × 13 × 292 × 281
(3 × 3 × 5 × 13 × 29 × 29 × 281)See below for interesting mathematical facts about the number 138247785 from the Numbermatics database.
Names of 138247785
- Cardinal: 138247785 can be written as One hundred thirty-eight million, two hundred forty-seven thousand, seven hundred eighty-five.
Scientific notation
- Scientific notation: 1.38247785 × 108
Factors of 138247785
Divisors of 138247785
- Number of divisors d(n): 72
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Complete list of divisors:
1 3 5 9 13 15 29 39 45 65 87 117 145 195 261 281 377 435 585 841 843 1131 1305 1405 1885 2523 2529 3393 3653 4205 4215 5655 7569 8149 10933 10959 12615 12645 16965 18265 24447 32799 32877 37845 40745 54665 54795 73341 98397 105937 122235 163995 164385 236321 317811 366705 491985 529685 708963 953433 1181605 1589055 2126889 3072173 3544815 4767165 9216519 10634445 15360865 27649557 46082595 138247785
- Sum of all divisors σ(n): 268219224
- Sum of proper divisors (its aliquot sum) s(n): 129971439
- 138247785 is a deficient number, because the sum of its proper divisors (129971439) is less than itself. Its deficiency is 8276346
Bases of 138247785
- Binary: 10000011110101111110011010012
- Hexadecimal: 0x83D7E69
- Base-36: 2AB4O9
Squares and roots of 138247785
- 138247785 squared (1382477852) is 19112450057406225
- 138247785 cubed (1382477853) is 2642253886359533451461625
-
The
square root of 138247785 is 11757.8818245465 -
The
cube root of 138247785 is 517.0740316025
Scales and comparisons
How big is 138247785?- 138,247,785 seconds is equal to 4 years, 20 weeks, 4 days, 2 hours, 9 minutes, 45 seconds.
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To count from 1 to 138,247,785 would take you about 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 138247785 cubic inches would be around 43.1 feet tall.
Recreational maths with 138247785
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The information we have on file for 138247785 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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