# 491464561

## 491,464,561 is an odd composite number composed of two prime numbers multiplied together.

What does the number 491464561 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 9 divisors.

491464561 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of nine divisors.

## Prime factorization of 491464561:

### 72 × 31672

(7 × 7 × 3167 × 3167)

See below for interesting mathematical facts about the number 491464561 from the Numbermatics database.

### Names of 491464561

• Cardinal: 491464561 can be written as Four hundred ninety-one million, four hundred sixty-four thousand, five hundred sixty-one.

### Scientific notation

• Scientific notation: 4.91464561 × 108

### Factors of 491464561

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 3174

### Divisors of 491464561

• Number of divisors d(n): 9
• Complete list of divisors:
• Sum of all divisors σ(n): 571884249
• Sum of proper divisors (its aliquot sum) s(n): 80419688
• 491464561 is a deficient number, because the sum of its proper divisors (80419688) is less than itself. Its deficiency is 411044873

### Bases of 491464561

• Binary: 111010100101100100111011100012
• Base-36: 84LSHD

### Squares and roots of 491464561

• 491464561 squared (4914645612) is 241537414718922721
• 491464561 cubed (4914645613) is 118707079489910293469190481
• 491464561 is a perfect square number. Its square root is 22169
• The cube root of 491464561 is 789.1581915915

### Scales and comparisons

How big is 491464561?
• 491,464,561 seconds is equal to 15 years, 32 weeks, 4 days, 5 hours, 56 minutes, 1 second.
• To count from 1 to 491,464,561 would take you about twenty-three years!

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 491464561 cubic inches would be around 65.8 feet tall.

### Recreational maths with 491464561

• 491464561 backwards is 165464194
• The number of decimal digits it has is: 9
• The sum of 491464561's digits is 40
• More coming soon!