# 154

## 154 is an even composite number composed of three prime numbers multiplied together.

What does the number 154 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

154 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

## Prime factorization of 154:

### 2 × 7 × 11

See below for interesting mathematical facts about the number 154 from the Numbermatics database.

### Names of 154

• Cardinal: 154 can be written as One hundred fifty-four.

### Scientific notation

• Scientific notation: 1.54 × 102

### Factors of 154

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

### Divisors of 154

• Number of divisors d(n): 8
• Complete list of divisors:
• Sum of all divisors σ(n): 288
• Sum of proper divisors (its aliquot sum) s(n): 134
• 154 is a deficient number, because the sum of its proper divisors (134) is less than itself. Its deficiency is 20

### Bases of 154

• Binary: 100110102
• Base-36: 4A

### Squares and roots of 154

• 154 squared (1542) is 23716
• 154 cubed (1543) is 3652264
• The square root of 154 is 12.4096736459
• The cube root of 154 is 5.3601084109

### Scales and comparisons

How big is 154?
• 154 seconds is equal to 2 minutes, 34 seconds.
• To count from 1 to 154 would take you about seventeen 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 154 cubic inches would be around 0.4 feet tall.

### Recreational maths with 154

• 154 backwards is 451
• The number of decimal digits it has is: 3
• The sum of 154's digits is 10
• More coming soon!