21440970

21,440,970 is an even composite number composed of four prime numbers multiplied together.

What does the number 21440970 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 32 divisors.

21440970 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 21440970:

2 × 3³ × 5 × 79411

(2 × 3 × 3 × 3 × 5 × 79411)

See below for interesting mathematical facts about the number 21440970 from the Numbermatics database.

Names of 21440970

Cardinal: 21440970 can be written as Twenty-one million, four hundred forty thousand, nine hundred seventy.

Scientific notation

Scientific notation: 2.144097 × 10⁷

Factors of 21440970

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 79421

Divisors of 21440970

Number of divisors d(n): 32
Complete list of divisors:
1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 79411 158822 238233 397055 476466 714699 794110 1191165 1429398 2144097 2382330 3573495 4288194 7146990 10720485 21440970
Sum of all divisors σ(n): 57176640
Sum of proper divisors (its aliquot sum) s(n): 35735670
21440970 is an abundant number, because the sum of its proper divisors (35735670) is greater than itself. Its abundance is 14294700

Bases of 21440970

Binary: 1010001110010100111001010₂
Hexadecimal: 0x14729CA
Base-36: CRJYI

Squares and roots of 21440970

21440970 squared (21440970²) is 459715194540900
21440970 cubed (21440970³) is 9856739694695600673000
The square root of 21440970 is 4630.4395039779
The cube root of 21440970 is 277.8101718073

Scales and comparisons

How big is 21440970?

21,440,970 seconds is equal to 35 weeks, 3 days, 3 hours, 49 minutes, 30 seconds.
To count from 1 to 21,440,970 would take you about five 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 21440970 cubic inches would be around 23.2 feet tall.

Recreational maths with 21440970

21440970 backwards is 07904412
21440970 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21440970's digits is 27
More coming soon!

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The information we have on file for 21440970 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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