153

153 is an odd composite number composed of two prime numbers multiplied together.

What does the number 153 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

153 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

Prime factorization of 153:

3² × 17

(3 × 3 × 17)

See below for interesting mathematical facts about the number 153 from the Numbermatics database.

Names of 153

Cardinal: 153 can be written as One hundred fifty-three.

Scientific notation

Scientific notation: 1.53 × 10²

Factors of 153

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 3
Sum of prime factors: 20

Divisors of 153

Number of divisors d(n): 6
Complete list of divisors:
1 3 9 17 51 153
Sum of all divisors σ(n): 234
Sum of proper divisors (its aliquot sum) s(n): 81
153 is a deficient number, because the sum of its proper divisors (81) is less than itself. Its deficiency is 72

Bases of 153

Binary: 10011001₂
Hexadecimal: 0x99
Base-36: 49

Squares and roots of 153

153 squared (153²) is 23409
153 cubed (153³) is 3581577
The square root of 153 is 12.3693168769
The cube root of 153 is 5.3484812413

Scales and comparisons

How big is 153?

153 seconds is equal to 2 minutes, 33 seconds.
To count from 1 to 153 would take you about sixteen seconds.

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 153 cubic inches would be around 0.4 feet tall.

Recreational maths with 153

153 backwards is 351
153 is a Harshad number.
The number of decimal digits it has is: 3
The sum of 153's digits is 9
More coming soon!

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The information we have on file for 153 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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