21329505

21,329,505 is an odd composite number composed of five prime numbers multiplied together.

What does the number 21329505 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 48 divisors.

21329505 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 21329505:

3² × 5 × 43 × 73 × 151

(3 × 3 × 5 × 43 × 73 × 151)

See below for interesting mathematical facts about the number 21329505 from the Numbermatics database.

Names of 21329505

Cardinal: 21329505 can be written as Twenty-one million, three hundred twenty-nine thousand, five hundred five.

Scientific notation

Scientific notation: 2.1329505 × 10⁷

Factors of 21329505

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 275

Divisors of 21329505

Number of divisors d(n): 48
Complete list of divisors:
1 3 5 9 15 43 45 73 129 151 215 219 365 387 453 645 657 755 1095 1359 1935 2265 3139 3285 6493 6795 9417 11023 15695 19479 28251 32465 33069 47085 55115 58437 97395 99207 141255 165345 292185 473989 496035 1421967 2369945 4265901 7109835 21329505
Sum of all divisors σ(n): 38603136
Sum of proper divisors (its aliquot sum) s(n): 17273631
21329505 is a deficient number, because the sum of its proper divisors (17273631) is less than itself. Its deficiency is 4055874

Bases of 21329505

Binary: 1010001010111011001100001₂
Hexadecimal: 0x1457661
Base-36: CP5Y9

Squares and roots of 21329505

21329505 squared (21329505²) is 454947783545025
21329505 cubed (21329505³) is 9703811023862528462625
The square root of 21329505 is 4618.3877056825
The cube root of 21329505 is 277.3279186347

Scales and comparisons

How big is 21329505?

21,329,505 seconds is equal to 35 weeks, 1 day, 20 hours, 51 minutes, 45 seconds.
To count from 1 to 21,329,505 would take you about six 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 21329505 cubic inches would be around 23.1 feet tall.

Recreational maths with 21329505

21329505 backwards is 50592312
The number of decimal digits it has is: 8
The sum of 21329505's digits is 27
More coming soon!

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The information we have on file for 21329505 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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