155205

155,205 is an odd composite number composed of three prime numbers multiplied together.

What does the number 155205 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

155205 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 155205:

3² × 5 × 3449

(3 × 3 × 5 × 3449)

See below for interesting mathematical facts about the number 155205 from the Numbermatics database.

Names of 155205

Cardinal: 155205 can be written as One hundred fifty-five thousand, two hundred five.

Scientific notation

Scientific notation: 1.55205 × 10⁵

Factors of 155205

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 3457

Divisors of 155205

Number of divisors d(n): 12
Complete list of divisors:
1 3 5 9 15 45 3449 10347 17245 31041 51735 155205
Sum of all divisors σ(n): 269100
Sum of proper divisors (its aliquot sum) s(n): 113895
155205 is a deficient number, because the sum of its proper divisors (113895) is less than itself. Its deficiency is 41310

Bases of 155205

Binary: 100101111001000101₂
Hexadecimal: 0x25E45
Base-36: 3BR9

Squares and roots of 155205

155205 squared (155205²) is 24088592025
155205 cubed (155205³) is 3738669925240125
The square root of 155205 is 393.9606579343
The cube root of 155205 is 53.7405247405

Scales and comparisons

How big is 155205?

155,205 seconds is equal to 1 day, 19 hours, 6 minutes, 45 seconds.
To count from 1 to 155,205 would take you about nineteen hours.

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 155205 cubic inches would be around 4.5 feet tall.

Recreational maths with 155205

155205 backwards is 502551
The number of decimal digits it has is: 6
The sum of 155205's digits is 18
More coming soon!

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The information we have on file for 155205 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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