42399728

42,399,728 is an even composite number composed of three prime numbers multiplied together.

What does the number 42399728 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 20 divisors.

42399728 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twenty divisors.

Prime factorization of 42399728:

2⁴ × 7 × 378569

(2 × 2 × 2 × 2 × 7 × 378569)

See below for interesting mathematical facts about the number 42399728 from the Numbermatics database.

Names of 42399728

Cardinal: 42399728 can be written as Forty-two million, three hundred ninety-nine thousand, seven hundred twenty-eight.

Scientific notation

Scientific notation: 4.2399728 × 10⁷

Factors of 42399728

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 6
Sum of prime factors: 378578

Divisors of 42399728

Number of divisors d(n): 20
Complete list of divisors:
1 2 4 7 8 14 16 28 56 112 378569 757138 1514276 2649983 3028552 5299966 6057104 10599932 21199864 42399728
Sum of all divisors σ(n): 93885360
Sum of proper divisors (its aliquot sum) s(n): 51485632
42399728 is an abundant number, because the sum of its proper divisors (51485632) is greater than itself. Its abundance is 9085904

Bases of 42399728

Binary: 10100001101111011111110000₂
Hexadecimal: 0x286F7F0
Base-36: P8RU8

Squares and roots of 42399728

42399728 squared (42399728²) is 1797736934473984
42399728 cubed (42399728³) is 76223557037250744676352
The square root of 42399728 is 6511.5073523723
The cube root of 42399728 is 348.7019345979

Scales and comparisons

How big is 42399728?

42,399,728 seconds is equal to 1 year, 18 weeks, 17 hours, 42 minutes, 8 seconds.
To count from 1 to 42,399,728 would take you about two years!

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 42399728 cubic inches would be around 29.1 feet tall.

Recreational maths with 42399728

42399728 backwards is 82799324
The number of decimal digits it has is: 8
The sum of 42399728's digits is 44
More coming soon!

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The information we have on file for 42399728 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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