156
156 is an even composite number composed of three prime numbers multiplied together.
156 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.
Prime factorization of 156:
2^{2} × 3 × 13
(2 × 2 × 3 × 13)See below for interesting mathematical facts about the number 156 from the Numbermatics database.
Names of 156
 Cardinal: 156 can be written as One hundred fiftysix.
Scientific notation
 Scientific notation: 1.56 × 10^{2}
Factors of 156
 Number of distinct prime factors ω(n): 3
 Total number of prime factors Ω(n): 4
 Sum of prime factors: 18
Divisors of 156
 Number of divisors d(n): 12
 Complete list of divisors:
 Sum of all divisors σ(n): 392
 Sum of proper divisors (its aliquot sum) s(n): 236
 156 is an abundant number, because the sum of its proper divisors (236) is greater than itself. Its abundance is 80
Bases of 156
 Binary: 10011100 _{2}
 Hexadecimal: 0x9c
Squares and roots of 156
 156 squared (156^{2}) is 24336
 156 cubed (156^{3}) is 3796416

The
square root of 156 is 12.4899959968 
The
cube root of 156 is 5.3832126121
Scales and comparisons
How big is 156? 156 seconds is equal to 2 minutes, 36 seconds.

To count from 1 to 156 would take you about one minute.
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 randomlychosen 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.
Note: we do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!
 A cube with a volume of 156 cubic inches would be around 0.4 feet tall.
Recreational maths with 156
 156 backwards is 651
 156 is a
Harshad number .  The number of decimal digits it has is: 3
 The sum of 156's digits is 12
 More coming soon!
The information we have on file for 156 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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