420640

420,640 is an even composite number composed of four prime numbers multiplied together.

What does the number 420640 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 48 divisors.

420640 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 420640:

2⁵ × 5 × 11 × 239

(2 × 2 × 2 × 2 × 2 × 5 × 11 × 239)

See below for interesting mathematical facts about the number 420640 from the Numbermatics database.

Names of 420640

Cardinal: 420640 can be written as Four hundred twenty thousand, six hundred forty.

Scientific notation

Scientific notation: 4.2064 × 10⁵

Factors of 420640

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 8
Sum of prime factors: 257

Divisors of 420640

Number of divisors d(n): 48
Complete list of divisors:
1 2 4 5 8 10 11 16 20 22 32 40 44 55 80 88 110 160 176 220 239 352 440 478 880 956 1195 1760 1912 2390 2629 3824 4780 5258 7648 9560 10516 13145 19120 21032 26290 38240 42064 52580 84128 105160 210320 420640
Sum of all divisors σ(n): 1088640
Sum of proper divisors (its aliquot sum) s(n): 668000
420640 is an abundant number, because the sum of its proper divisors (668000) is greater than itself. Its abundance is 247360

Bases of 420640

Binary: 1100110101100100000₂
Hexadecimal: 0x66B20
Base-36: 90KG

Squares and roots of 420640

420640 squared (420640²) is 176938009600
420640 cubed (420640³) is 74427204358144000
The square root of 420640 is 648.5676526007
The cube root of 420640 is 74.9267432841

Scales and comparisons

How big is 420640?

420,640 seconds is equal to 4 days, 20 hours, 50 minutes, 40 seconds.
To count from 1 to 420,640 would take you about four 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 420640 cubic inches would be around 6.2 feet tall.

Recreational maths with 420640

420640 backwards is 046024
420640 is a Harshad number.
The number of decimal digits it has is: 6
The sum of 420640's digits is 16
More coming soon!

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The information we have on file for 420640 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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