138728940
138,728,940 is an even composite number composed of six prime numbers multiplied together.
What does the number 138728940 look like?
This visualization shows the relationship between its 6 prime factors (large circles) and 96 divisors.
138728940 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 138728940:
22 × 3 × 5 × 7 × 137 × 2411
(2 × 2 × 3 × 5 × 7 × 137 × 2411)See below for interesting mathematical facts about the number 138728940 from the Numbermatics database.
Names of 138728940
- Cardinal: 138728940 can be written as One hundred thirty-eight million, seven hundred twenty-eight thousand, nine hundred forty.
Scientific notation
- Scientific notation: 1.3872894 × 108
Factors of 138728940
Divisors of 138728940
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 137 140 210 274 411 420 548 685 822 959 1370 1644 1918 2055 2411 2740 2877 3836 4110 4795 4822 5754 7233 8220 9590 9644 11508 12055 14385 14466 16877 19180 24110 28770 28932 33754 36165 48220 50631 57540 67508 72330 84385 101262 144660 168770 202524 253155 330307 337540 506310 660614 990921 1012620 1321228 1651535 1981842 2312149 3303070 3963684 4624298 4954605 6606140 6936447 9248596 9909210 11560745 13872894 19818420 23121490 27745788 34682235 46242980 69364470 138728940
- Sum of all divisors σ(n): 447358464
- Sum of proper divisors (its aliquot sum) s(n): 308629524
- 138728940 is an abundant number, because the sum of its proper divisors (308629524) is greater than itself. Its abundance is 169900584
Bases of 138728940
- Binary: 10000100010011010101111011002
- Hexadecimal: 0x844D5EC
- Base-36: 2ALFXO
Squares and roots of 138728940
- 138728940 squared (1387289402) is 19245718793523600
- 138728940 cubed (1387289403) is 2669938167763607892984000
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The
square root of 138728940 is 11778.3250082513 -
The
cube root of 138728940 is 517.6732086075
Scales and comparisons
How big is 138728940?- 138,728,940 seconds is equal to 4 years, 21 weeks, 2 days, 15 hours, 49 minutes.
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To count from 1 to 138,728,940 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 138728940 cubic inches would be around 43.1 feet tall.
Recreational maths with 138728940
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The information we have on file for 138728940 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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