138405412789
138,405,412,789 is an odd composite number composed of four prime numbers multiplied together.
138405412789 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 138405412789:
73 × 232 × 292 × 907
(7 × 7 × 7 × 23 × 23 × 29 × 29 × 907)See below for interesting mathematical facts about the number 138405412789 from the Numbermatics database.
Names of 138405412789
- Cardinal: 138405412789 can be written as One hundred thirty-eight billion, four hundred five million, four hundred twelve thousand, seven hundred eighty-nine.
Scientific notation
- Scientific notation: 1.38405412789 × 1011
Factors of 138405412789
Divisors of 138405412789
- Number of divisors d(n): 72
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Complete list of divisors:
1 7 23 29 49 161 203 343 529 667 841 907 1127 1421 3703 4669 5887 6349 7889 9947 15341 19343 20861 25921 26303 32683 41209 44443 107387 135401 146027 181447 184121 228781 288463 311101 444889 479803 604969 751709 762787 947807 1022189 1288847 3114223 3358621 4234783 5261963 5339509 6634649 7155323 9021929 13914287 17544101 21799561 23510347 29643481 37376563 97400009 122808707 152596927 164572429 207504367 261635941 403514323 681800063 859660949 2824600261 4772600441 6017626643 19772201827 138405412789
- Sum of all divisors σ(n): 174940001600
- Sum of proper divisors (its aliquot sum) s(n): 36534588811
- 138405412789 is a deficient number, because the sum of its proper divisors (36534588811) is less than itself. Its deficiency is 101870823978
Bases of 138405412789
- Binary: 100000001110011001101011111111101101012
- Hexadecimal: 0x20399AFFB5
- Base-36: 1RKZ0BZP
Squares and roots of 138405412789
- 138405412789 squared (1384054127892) is 19156058289293484758521
- 138405412789 cubed (1384054127893) is 2651302154939809937171378990125069
-
The
square root of 138405412789 is 372028.7795171229 -
The
cube root of 138405412789 is 5172.7047665231
Scales and comparisons
How big is 138405412789?- 138,405,412,789 seconds is equal to 4,400 years, 44 weeks, 6 days, 11 hours, 59 minutes, 49 seconds.
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To count from 1 to 138,405,412,789 would take you about eight thousand, eight hundred one 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 138405412789 cubic inches would be around 431.1 feet tall.
Recreational maths with 138405412789
- 138405412789 backwards is 987214504831
- The number of decimal digits it has is: 12
- The sum of 138405412789's digits is 52
- More coming soon!
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