# 221971

## 221,971 is an odd composite number composed of two prime numbers multiplied together.

What does the number 221971 look like?

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

221971 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 221971:

### 67 × 3313

See below for interesting mathematical facts about the number 221971 from the Numbermatics database.

### Names of 221971

• Cardinal: 221971 can be written as Two hundred twenty-one thousand, nine hundred seventy-one.

### Scientific notation

• Scientific notation: 2.21971 × 105

### Factors of 221971

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 3380

### Divisors of 221971

• Number of divisors d(n): 4
• Complete list of divisors:
• Sum of all divisors σ(n): 225352
• Sum of proper divisors (its aliquot sum) s(n): 3381
• 221971 is a deficient number, because the sum of its proper divisors (3381) is less than itself. Its deficiency is 218590

### Bases of 221971

• Binary: 1101100011000100112
• Base-36: 4R9V

### Squares and roots of 221971

• 221971 squared (2219712) is 49271124841
• 221971 cubed (2219713) is 10936760852081611
• The square root of 221971 is 471.1379840345
• The cube root of 221971 is 60.5478527675

### Scales and comparisons

How big is 221971?
• 221,971 seconds is equal to 2 days, 13 hours, 39 minutes, 31 seconds.
• To count from 1 to 221,971 would take you about two days.

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 221971 cubic inches would be around 5 feet tall.

### Recreational maths with 221971

• 221971 backwards is 179122
• The number of decimal digits it has is: 6
• The sum of 221971's digits is 22
• More coming soon!