21420091

21,420,091 is an odd composite number composed of four prime numbers multiplied together.

What does the number 21420091 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 16 divisors.

21420091 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 21420091:

7 × 11 × 149 × 1867

See below for interesting mathematical facts about the number 21420091 from the Numbermatics database.

Names of 21420091

Cardinal: 21420091 can be written as Twenty-one million, four hundred twenty thousand and ninety-one.

Scientific notation

Scientific notation: 2.1420091 × 10⁷

Factors of 21420091

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 4
Sum of prime factors: 2034

Divisors of 21420091

Number of divisors d(n): 16
Complete list of divisors:
1 7 11 77 149 1043 1639 1867 11473 13069 20537 143759 278183 1947281 3060013 21420091
Sum of all divisors σ(n): 26899200
Sum of proper divisors (its aliquot sum) s(n): 5479109
21420091 is a deficient number, because the sum of its proper divisors (5479109) is less than itself. Its deficiency is 15940982

Bases of 21420091

Binary: 1010001101101100000111011₂
Hexadecimal: 0x146D83B
Base-36: CR3UJ

Squares and roots of 21420091

21420091 squared (21420091²) is 458820298448281
21420091 cubed (21420091³) is 9827972545409337813571
The square root of 21420091 is 4628.1844172417
The cube root of 21420091 is 277.7199662743

Scales and comparisons

How big is 21420091?

21,420,091 seconds is equal to 35 weeks, 2 days, 22 hours, 1 minute, 31 seconds.
To count from 1 to 21,420,091 would take you about twenty-one hours!

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 21420091 cubic inches would be around 23.1 feet tall.

Recreational maths with 21420091

21420091 backwards is 19002412
The number of decimal digits it has is: 8
The sum of 21420091's digits is 19
More coming soon!

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The information we have on file for 21420091 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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