138009445
138,009,445 is an odd composite number composed of six prime numbers multiplied together.
What does the number 138009445 look like?
This visualization shows the relationship between its 6 prime factors (large circles) and 64 divisors.
138009445 is an odd composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 138009445:
5 × 7 × 19 × 37 × 71 × 79
See below for interesting mathematical facts about the number 138009445 from the Numbermatics database.
Names of 138009445
- Cardinal: 138009445 can be written as One hundred thirty-eight million, nine thousand, four hundred forty-five.
Scientific notation
- Scientific notation: 1.38009445 × 108
Factors of 138009445
Divisors of 138009445
- Number of divisors d(n): 64
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Complete list of divisors:
1 5 7 19 35 37 71 79 95 133 185 259 355 395 497 553 665 703 1295 1349 1501 2485 2627 2765 2923 3515 4921 5609 6745 7505 9443 10507 13135 14615 18389 20461 24605 28045 39263 47215 49913 52535 55537 91945 102305 106571 196315 207533 249565 277685 349391 388759 532855 745997 1037665 1452731 1746955 1943795 3729985 3943127 7263655 19715635 27601889 138009445
- Sum of all divisors σ(n): 210124800
- Sum of proper divisors (its aliquot sum) s(n): 72115355
- 138009445 is a deficient number, because the sum of its proper divisors (72115355) is less than itself. Its deficiency is 65894090
Bases of 138009445
- Binary: 10000011100111011011011001012
- Hexadecimal: 0x839DB65
- Base-36: 2A60RP
Squares and roots of 138009445
- 138009445 squared (1380094452) is 19046606909208025
- 138009445 cubed (1380094453) is 2628611648672964919796125
-
The
square root of 138009445 is 11747.7421234891 -
The
cube root of 138009445 is 516.7767144475
Scales and comparisons
How big is 138009445?- 138,009,445 seconds is equal to 4 years, 20 weeks, 1 day, 7 hours, 57 minutes, 25 seconds.
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To count from 1 to 138,009,445 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 138009445 cubic inches would be around 43.1 feet tall.
Recreational maths with 138009445
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