21721068

21,721,068 is an even composite number composed of three prime numbers multiplied together.

What does the number 21721068 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 24 divisors.

21721068 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 21721068:

2² × 3³ × 201121

(2 × 2 × 3 × 3 × 3 × 201121)

See below for interesting mathematical facts about the number 21721068 from the Numbermatics database.

Names of 21721068

Cardinal: 21721068 can be written as Twenty-one million, seven hundred twenty-one thousand and sixty-eight.

Scientific notation

Scientific notation: 2.1721068 × 10⁷

Factors of 21721068

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 6
Sum of prime factors: 201126

Divisors of 21721068

Number of divisors d(n): 24
Complete list of divisors:
1 2 3 4 6 9 12 18 27 36 54 108 201121 402242 603363 804484 1206726 1810089 2413452 3620178 5430267 7240356 10860534 21721068
Sum of all divisors σ(n): 56314160
Sum of proper divisors (its aliquot sum) s(n): 34593092
21721068 is an abundant number, because the sum of its proper divisors (34593092) is greater than itself. Its abundance is 12872024

Bases of 21721068

Binary: 1010010110110111111101100₂
Hexadecimal: 0x14B6FEC
Base-36: CXK30

Squares and roots of 21721068

21721068 squared (21721068²) is 471804795060624
21721068 cubed (21721068³) is 10248104036237878026432
The square root of 21721068 is 4660.5866583511
The cube root of 21721068 is 279.0146830057

Scales and comparisons

How big is 21721068?

21,721,068 seconds is equal to 35 weeks, 6 days, 9 hours, 37 minutes, 48 seconds.
To count from 1 to 21,721,068 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 21721068 cubic inches would be around 23.3 feet tall.

Recreational maths with 21721068

21721068 backwards is 86012712
21721068 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21721068's digits is 27
More coming soon!

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The information we have on file for 21721068 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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