138408025

138,408,025 is an odd composite number composed of four prime numbers multiplied together.

What does the number 138408025 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 36 divisors.

138408025 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-six divisors.

Prime factorization of 138408025:

5² × 7 × 31² × 823

(5 × 5 × 7 × 31 × 31 × 823)

See below for interesting mathematical facts about the number 138408025 from the Numbermatics database.

Names of 138408025

Cardinal: 138408025 can be written as One hundred thirty-eight million, four hundred eight thousand and twenty-five.

Scientific notation

Scientific notation: 1.38408025 × 10⁸

Factors of 138408025

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 866

Divisors of 138408025

Number of divisors d(n): 36
Complete list of divisors:
1 5 7 25 31 35 155 175 217 775 823 961 1085 4115 4805 5425 5761 6727 20575 24025 25513 28805 33635 127565 144025 168175 178591 637825 790903 892955 3954515 4464775 5536321 19772575 27681605 138408025
Sum of all divisors σ(n): 202921536
Sum of proper divisors (its aliquot sum) s(n): 64513511
138408025 is a deficient number, because the sum of its proper divisors (64513511) is less than itself. Its deficiency is 73894514

Bases of 138408025

Binary: 1000001111111111000001011001₂
Hexadecimal: 0x83FF059
Base-36: 2AEKBD

Squares and roots of 138408025

138408025 squared (138408025²) is 19156781384400625
138408025 cubed (138408025³) is 2651452276771656315015625
The square root of 138408025 is 11764.6940036705
The cube root of 138408025 is 517.2737308869

Scales and comparisons

How big is 138408025?

138,408,025 seconds is equal to 4 years, 20 weeks, 5 days, 22 hours, 40 minutes, 25 seconds.
To count from 1 to 138,408,025 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 138408025 cubic inches would be around 43.1 feet tall.

Recreational maths with 138408025

138408025 backwards is 520804831
138408025 is a Harshad number.
The number of decimal digits it has is: 9
The sum of 138408025's digits is 31
More coming soon!

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The information we have on file for 138408025 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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