21426660

21,426,660 is an even composite number composed of four prime numbers multiplied together.

What does the number 21426660 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 48 divisors.

21426660 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 21426660:

2² × 3³ × 5 × 39679

(2 × 2 × 3 × 3 × 3 × 5 × 39679)

See below for interesting mathematical facts about the number 21426660 from the Numbermatics database.

Names of 21426660

Cardinal: 21426660 can be written as Twenty-one million, four hundred twenty-six thousand, six hundred sixty.

Scientific notation

Scientific notation: 2.142666 × 10⁷

Factors of 21426660

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 7
Sum of prime factors: 39689

Divisors of 21426660

Number of divisors d(n): 48
Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 540 39679 79358 119037 158716 198395 238074 357111 396790 476148 595185 714222 793580 1071333 1190370 1428444 1785555 2142666 2380740 3571110 4285332 5356665 7142220 10713330 21426660
Sum of all divisors σ(n): 66662400
Sum of proper divisors (its aliquot sum) s(n): 45235740
21426660 is an abundant number, because the sum of its proper divisors (45235740) is greater than itself. Its abundance is 23809080

Bases of 21426660

Binary: 1010001101111000111100100₂
Hexadecimal: 0x146F1E4
Base-36: CR8X0

Squares and roots of 21426660

21426660 squared (21426660²) is 459101758755600
21426660 cubed (21426660³) is 9837017290258264296000
The square root of 21426660 is 4628.8940363763
The cube root of 21426660 is 277.7483532685

Scales and comparisons

How big is 21426660?

21,426,660 seconds is equal to 35 weeks, 2 days, 23 hours, 51 minutes.
To count from 1 to 21,426,660 would take you about twenty-three 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 21426660 cubic inches would be around 23.1 feet tall.

Recreational maths with 21426660

21426660 backwards is 06662412
21426660 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21426660's digits is 27
More coming soon!

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The information we have on file for 21426660 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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