# 451

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

What does the number 451 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

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

## Prime factorization of 451:

### 11 × 41

See below for interesting mathematical facts about the number 451 from the Numbermatics database.

### Names of 451

• Cardinal: 451 can be written as Four hundred fifty-one.

### Scientific notation

• Scientific notation: 4.51 × 102

### Factors of 451

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 52

### Divisors of 451

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 504
• Sum of proper divisors (its aliquot sum) s(n): 53
• 451 is a deficient number, because the sum of its proper divisors (53) is less than itself. Its deficiency is 398

### Bases of 451

• Binary: 1110000112
• Base-36: CJ

### Squares and roots of 451

• 451 squared (4512) is 203401
• 451 cubed (4513) is 91733851
• The square root of 451 is 21.2367605815
• The cube root of 451 is 7.6687664905

### Scales and comparisons

How big is 451?
• 451 seconds is equal to 7 minutes, 31 seconds.
• To count from 1 to 451 would take you about three minutes.

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 451 cubic inches would be around 0.6 feet tall.

### Recreational maths with 451

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