20400705

20,400,705 is an odd composite number composed of five prime numbers multiplied together.

What does the number 20400705 look like?

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

20400705 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 20400705:

3² × 5 × 13 × 43 × 811

(3 × 3 × 5 × 13 × 43 × 811)

See below for interesting mathematical facts about the number 20400705 from the Numbermatics database.

Names of 20400705

Cardinal: 20400705 can be written as Twenty million, four hundred thousand, seven hundred five.

Scientific notation

Scientific notation: 2.0400705 × 10⁷

Factors of 20400705

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 875

Divisors of 20400705

Number of divisors d(n): 48
Complete list of divisors:
1 3 5 9 13 15 39 43 45 65 117 129 195 215 387 559 585 645 811 1677 1935 2433 2795 4055 5031 7299 8385 10543 12165 25155 31629 34873 36495 52715 94887 104619 158145 174365 313857 453349 474435 523095 1360047 1569285 2266745 4080141 6800235 20400705
Sum of all divisors σ(n): 39014976
Sum of proper divisors (its aliquot sum) s(n): 18614271
20400705 is a deficient number, because the sum of its proper divisors (18614271) is less than itself. Its deficiency is 1786434

Bases of 20400705

Binary: 1001101110100101001000001₂
Hexadecimal: 0x1374A41
Base-36: C59A9

Squares and roots of 20400705

20400705 squared (20400705²) is 416188764497025
20400705 cubed (20400705³) is 8490544208818280402625
The square root of 20400705 is 4516.7139603921
The cube root of 20400705 is 273.2425891845

Scales and comparisons

How big is 20400705?

20,400,705 seconds is equal to 33 weeks, 5 days, 2 hours, 51 minutes, 45 seconds.
To count from 1 to 20,400,705 would take you about fifty weeks!

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 20400705 cubic inches would be around 22.8 feet tall.

Recreational maths with 20400705

20400705 backwards is 50700402
The number of decimal digits it has is: 8
The sum of 20400705's digits is 18
More coming soon!

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The information we have on file for 20400705 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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