138478890
138,478,890 is an even composite number composed of six prime numbers multiplied together.
138478890 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 138478890:
2 × 3 × 5 × 11 × 233 × 1801
See below for interesting mathematical facts about the number 138478890 from the Numbermatics database.
Names of 138478890
- Cardinal: 138478890 can be written as One hundred thirty-eight million, four hundred seventy-eight thousand, eight hundred ninety.
Scientific notation
- Scientific notation: 1.3847889 × 108
Factors of 138478890
Divisors of 138478890
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 233 330 466 699 1165 1398 1801 2330 2563 3495 3602 5126 5403 6990 7689 9005 10806 12815 15378 18010 19811 25630 27015 38445 39622 54030 59433 76890 99055 118866 198110 297165 419633 594330 839266 1258899 2098165 2517798 4196330 4615963 6294495 9231926 12588990 13847889 23079815 27695778 46159630 69239445 138478890
- Sum of all divisors σ(n): 364321152
- Sum of proper divisors (its aliquot sum) s(n): 225842262
- 138478890 is an abundant number, because the sum of its proper divisors (225842262) is greater than itself. Its abundance is 87363372
Bases of 138478890
- Binary: 10000100000100000101001010102
- Hexadecimal: 0x841052A
- Base-36: 2AG2ZU
Squares and roots of 138478890
- 138478890 squared (1384788902) is 19176402975632100
- 138478890 cubed (1384788903) is 2655526998258230256369000
-
The
square root of 138478890 is 11767.7053838035 -
The
cube root of 138478890 is 517.3619973217
Scales and comparisons
How big is 138478890?- 138,478,890 seconds is equal to 4 years, 20 weeks, 6 days, 18 hours, 21 minutes, 30 seconds.
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To count from 1 to 138,478,890 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 138478890 cubic inches would be around 43.1 feet tall.
Recreational maths with 138478890
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The information we have on file for 138478890 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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