21469742

21,469,742 is an even composite number composed of four prime numbers multiplied together.

What does the number 21469742 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 40 divisors.

21469742 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty divisors.

Prime factorization of 21469742:

2 × 7⁴ × 17 × 263

(2 × 7 × 7 × 7 × 7 × 17 × 263)

See below for interesting mathematical facts about the number 21469742 from the Numbermatics database.

Names of 21469742

Cardinal: 21469742 can be written as Twenty-one million, four hundred sixty-nine thousand, seven hundred forty-two.

Scientific notation

Scientific notation: 2.1469742 × 10⁷

Factors of 21469742

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 7
Sum of prime factors: 289

Divisors of 21469742

Number of divisors d(n): 40
Complete list of divisors:
1 2 7 14 17 34 49 98 119 238 263 343 526 686 833 1666 1841 2401 3682 4471 4802 5831 8942 11662 12887 25774 31297 40817 62594 81634 90209 180418 219079 438158 631463 1262926 1533553 3067106 10734871 21469742
Sum of all divisors σ(n): 39931056
Sum of proper divisors (its aliquot sum) s(n): 18461314
21469742 is a deficient number, because the sum of its proper divisors (18461314) is less than itself. Its deficiency is 3008428

Bases of 21469742

Binary: 1010001111001101000101110₂
Hexadecimal: 0x1479A2E
Base-36: CS65Q

Squares and roots of 21469742

21469742 squared (21469742²) is 460949821546564
21469742 cubed (21469742³) is 9896473743550770066488
The square root of 21469742 is 4633.5452949119
The cube root of 21469742 is 277.9343823187

Scales and comparisons

How big is 21469742?

21,469,742 seconds is equal to 35 weeks, 3 days, 11 hours, 49 minutes, 2 seconds.
To count from 1 to 21,469,742 would take you about seventeen 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 21469742 cubic inches would be around 23.2 feet tall.

Recreational maths with 21469742

21469742 backwards is 24796412
The number of decimal digits it has is: 8
The sum of 21469742's digits is 35
More coming soon!

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The information we have on file for 21469742 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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