221038649

221,038,649 is an odd composite number composed of three prime numbers multiplied together.

What does the number 221038649 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 18 divisors.

221038649 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eighteen divisors.

Prime factorization of 221038649:

13² × 31² × 1361

(13 × 13 × 31 × 31 × 1361)

See below for interesting mathematical facts about the number 221038649 from the Numbermatics database.

Names of 221038649

Cardinal: 221038649 can be written as Two hundred twenty-one million, thirty-eight thousand, six hundred forty-nine.

Scientific notation

Scientific notation: 2.21038649 × 10⁸

Factors of 221038649

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 5
Sum of prime factors: 1405

Divisors of 221038649

Number of divisors d(n): 18
Complete list of divisors:
1 13 31 169 403 961 1361 5239 12493 17693 42191 162409 230009 548483 1307921 7130279 17002973 221038649
Sum of all divisors σ(n): 247501278
Sum of proper divisors (its aliquot sum) s(n): 26462629
221038649 is a deficient number, because the sum of its proper divisors (26462629) is less than itself. Its deficiency is 194576020

Bases of 221038649

Binary: 1101001011001100100000111001₂
Hexadecimal: 0xD2CC839
Base-36: 3NLMIH

Squares and roots of 221038649

221038649 squared (221038649²) is 48858084351745201
221038649 cubed (221038649³) is 10799524957837800021273449
The square root of 221038649 is 14867.3685970315
The cube root of 221038649 is 604.6296018415

Scales and comparisons

How big is 221038649?

221,038,649 seconds is equal to 7 years, 1 week, 3 days, 7 hours, 37 minutes, 29 seconds.
To count from 1 to 221,038,649 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 221038649 cubic inches would be around 50.4 feet tall.

Recreational maths with 221038649

221038649 backwards is 946830122
The number of decimal digits it has is: 9
The sum of 221038649's digits is 35
More coming soon!

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The information we have on file for 221038649 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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