221446721

221,446,721 is an odd composite number composed of two prime numbers multiplied together.

What does the number 221446721 look like?

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

221446721 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 221446721:

773 × 286477

See below for interesting mathematical facts about the number 221446721 from the Numbermatics database.

Names of 221446721

Cardinal: 221446721 can be written as Two hundred twenty-one million, four hundred forty-six thousand, seven hundred twenty-one.

Scientific notation

Scientific notation: 2.21446721 × 10⁸

Factors of 221446721

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 287250

Divisors of 221446721

Number of divisors d(n): 4
Complete list of divisors:
1 773 286477 221446721
Sum of all divisors σ(n): 221733972
Sum of proper divisors (its aliquot sum) s(n): 287251
221446721 is a deficient number, because the sum of its proper divisors (287251) is less than itself. Its deficiency is 221159470

Bases of 221446721

Binary: 1101001100110000001001000001₂
Hexadecimal: 0xD330241
Base-36: 3NUDDT

Squares and roots of 221446721

221446721 squared (221446721²) is 49038650241651841
221446721 cubed (221446721³) is 10859448298279657813063361
The square root of 221446721 is 14881.0860154763
The cube root of 221446721 is 605.0014534491

Scales and comparisons

How big is 221446721?

221,446,721 seconds is equal to 7 years, 2 weeks, 1 day, 58 minutes, 41 seconds.
To count from 1 to 221,446,721 would take you about ten 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 221446721 cubic inches would be around 50.4 feet tall.

Recreational maths with 221446721

221446721 backwards is 127644122
The number of decimal digits it has is: 9
The sum of 221446721's digits is 29
More coming soon!

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The information we have on file for 221446721 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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