20998845

20,998,845 is an odd composite number composed of four prime numbers multiplied together.

What does the number 20998845 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 56 divisors.

20998845 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of fifty-six divisors.

Prime factorization of 20998845:

3⁶ × 5 × 7 × 823

(3 × 3 × 3 × 3 × 3 × 3 × 5 × 7 × 823)

See below for interesting mathematical facts about the number 20998845 from the Numbermatics database.

Names of 20998845

Cardinal: 20998845 can be written as Twenty million, nine hundred ninety-eight thousand, eight hundred forty-five.

Scientific notation

Scientific notation: 2.0998845 × 10⁷

Factors of 20998845

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 9
Sum of prime factors: 838

Divisors of 20998845

Number of divisors d(n): 56
Complete list of divisors:
1 3 5 7 9 15 21 27 35 45 63 81 105 135 189 243 315 405 567 729 823 945 1215 1701 2469 2835 3645 4115 5103 5761 7407 8505 12345 17283 22221 25515 28805 37035 51849 66663 86415 111105 155547 199989 259245 333315 466641 599967 777735 999945 1399923 2333205 2999835 4199769 6999615 20998845
Sum of all divisors σ(n): 43230336
Sum of proper divisors (its aliquot sum) s(n): 22231491
20998845 is an abundant number, because the sum of its proper divisors (22231491) is greater than itself. Its abundance is 1232646

Bases of 20998845

Binary: 1010000000110101010111101₂
Hexadecimal: 0x1406ABD
Base-36: CI2T9

Squares and roots of 20998845

20998845 squared (20998845²) is 440951491334025
20998845 cubed (20998845³) is 9259472019042034201125
The square root of 20998845 is 4582.4496723915
The cube root of 20998845 is 275.8873595177

Scales and comparisons

How big is 20998845?

20,998,845 seconds is equal to 34 weeks, 5 days, 1 hour, 45 seconds.
To count from 1 to 20,998,845 would take you about thirteen 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 20998845 cubic inches would be around 23 feet tall.

Recreational maths with 20998845

20998845 backwards is 54889902
20998845 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 20998845's digits is 45
More coming soon!

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The information we have on file for 20998845 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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