138447920
138,447,920 is an even composite number composed of five prime numbers multiplied together.
138447920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 138447920:
24 × 5 × 13 × 239 × 557
(2 × 2 × 2 × 2 × 5 × 13 × 239 × 557)See below for interesting mathematical facts about the number 138447920 from the Numbermatics database.
Names of 138447920
- Cardinal: 138447920 can be written as One hundred thirty-eight million, four hundred forty-seven thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 1.3844792 × 108
Factors of 138447920
Divisors of 138447920
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 208 239 260 478 520 557 956 1040 1114 1195 1912 2228 2390 2785 3107 3824 4456 4780 5570 6214 7241 8912 9560 11140 12428 14482 15535 19120 22280 24856 28964 31070 36205 44560 49712 57928 62140 72410 115856 124280 133123 144820 248560 266246 289640 532492 579280 665615 1064984 1331230 1730599 2129968 2662460 3461198 5324920 6922396 8652995 10649840 13844792 17305990 27689584 34611980 69223960 138447920
- Sum of all divisors σ(n): 348727680
- Sum of proper divisors (its aliquot sum) s(n): 210279760
- 138447920 is an abundant number, because the sum of its proper divisors (210279760) is greater than itself. Its abundance is 71831840
Bases of 138447920
- Binary: 10000100000010001100001100002
- Hexadecimal: 0x8408C30
- Base-36: 2AFF3K
Squares and roots of 138447920
- 138447920 squared (1384479202) is 19167826552326400
- 138447920 cubed (1384479203) is 2653745717090361241088000
-
The
square root of 138447920 is 11766.3894207187 -
The
cube root of 138447920 is 517.3234261101
Scales and comparisons
How big is 138447920?- 138,447,920 seconds is equal to 4 years, 20 weeks, 6 days, 9 hours, 45 minutes, 20 seconds.
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To count from 1 to 138,447,920 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 138447920 cubic inches would be around 43.1 feet tall.
Recreational maths with 138447920
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The information we have on file for 138447920 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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