1242739728
1,242,739,728 is an even composite number composed of four prime numbers multiplied together.
1242739728 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 1242739728:
24 × 32 × 1741 × 4957
(2 × 2 × 2 × 2 × 3 × 3 × 1741 × 4957)See below for interesting mathematical facts about the number 1242739728 from the Numbermatics database.
Names of 1242739728
- Cardinal: 1242739728 can be written as One billion, two hundred forty-two million, seven hundred thirty-nine thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 1.242739728 × 109
Factors of 1242739728
Divisors of 1242739728
- Number of divisors d(n): 60
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Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 1741 3482 4957 5223 6964 9914 10446 13928 14871 15669 19828 20892 27856 29742 31338 39656 41784 44613 59484 62676 79312 83568 89226 118968 125352 178452 237936 250704 356904 713808 8630137 17260274 25890411 34520548 51780822 69041096 77671233 103561644 138082192 155342466 207123288 310684932 414246576 621369864 1242739728
- Sum of all divisors σ(n): 3480644908
- Sum of proper divisors (its aliquot sum) s(n): 2237905180
- 1242739728 is an abundant number, because the sum of its proper divisors (2237905180) is greater than itself. Its abundance is 995165452
Bases of 1242739728
- Binary: 10010100001001010110100000100002
- Hexadecimal: 0x4A12B410
- Base-36: KJW840
Squares and roots of 1242739728
- 1242739728 squared (12427397282) is 1544402031549513984
- 1242739728 cubed (12427397283) is 1919289760610490427008356352
-
The
square root of 1242739728 is 35252.5137827077 -
The
cube root of 1242739728 is 1075.1277232055
Scales and comparisons
How big is 1242739728?- 1,242,739,728 seconds is equal to 39 years, 26 weeks, 5 days, 13 hours, 28 minutes, 48 seconds.
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To count from 1 to 1,242,739,728 would take you about seventy-nine 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 1242739728 cubic inches would be around 89.6 feet tall.
Recreational maths with 1242739728
- 1242739728 backwards is 8279372421
- The number of decimal digits it has is: 10
- The sum of 1242739728's digits is 45
- More coming soon!
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The information we have on file for 1242739728 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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