21348740

21,348,740 is an even composite number composed of five prime numbers multiplied together.

What does the number 21348740 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 48 divisors.

21348740 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 21348740:

2² × 5 × 7 × 109 × 1399

(2 × 2 × 5 × 7 × 109 × 1399)

See below for interesting mathematical facts about the number 21348740 from the Numbermatics database.

Names of 21348740

Cardinal: 21348740 can be written as Twenty-one million, three hundred forty-eight thousand, seven hundred forty.

Scientific notation

Scientific notation: 2.134874 × 10⁷

Factors of 21348740

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 1522

Divisors of 21348740

Number of divisors d(n): 48
Complete list of divisors:
1 2 4 5 7 10 14 20 28 35 70 109 140 218 436 545 763 1090 1399 1526 2180 2798 3052 3815 5596 6995 7630 9793 13990 15260 19586 27980 39172 48965 97930 152491 195860 304982 609964 762455 1067437 1524910 2134874 3049820 4269748 5337185 10674370 21348740
Sum of all divisors σ(n): 51744000
Sum of proper divisors (its aliquot sum) s(n): 30395260
21348740 is an abundant number, because the sum of its proper divisors (30395260) is greater than itself. Its abundance is 9046520

Bases of 21348740

Binary: 1010001011100000110000100₂
Hexadecimal: 0x145C184
Base-36: CPKSK

Squares and roots of 21348740

21348740 squared (21348740²) is 455768699587600
21348740 cubed (21348740³) is 9730087467633779624000
The square root of 21348740 is 4620.4696730961
The cube root of 21348740 is 277.4112585871

Scales and comparisons

How big is 21348740?

21,348,740 seconds is equal to 35 weeks, 2 days, 2 hours, 12 minutes, 20 seconds.
To count from 1 to 21,348,740 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 21348740 cubic inches would be around 23.1 feet tall.

Recreational maths with 21348740

21348740 backwards is 04784312
The number of decimal digits it has is: 8
The sum of 21348740's digits is 29
More coming soon!

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The information we have on file for 21348740 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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