3145728

3,145,728 is an even composite number composed of two prime numbers multiplied together.

What does the number 3145728 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 42 divisors.

3145728 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of forty-two divisors.

Prime factorization of 3145728:

2²⁰ × 3

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3)

See below for interesting mathematical facts about the number 3145728 from the Numbermatics database.

Names of 3145728

Cardinal: 3145728 can be written as Three million, one hundred forty-five thousand, seven hundred twenty-eight.

Scientific notation

Scientific notation: 3.145728 × 10⁶

Factors of 3145728

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 21
Sum of prime factors: 5

Divisors of 3145728

Number of divisors d(n): 42
Complete list of divisors:
1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 512 768 1024 1536 2048 3072 4096 6144 8192 12288 16384 24576 32768 49152 65536 98304 131072 196608 262144 393216 524288 786432 1048576 1572864 3145728
Sum of all divisors σ(n): 8388604
Sum of proper divisors (its aliquot sum) s(n): 5242876
3145728 is an abundant number, because the sum of its proper divisors (5242876) is greater than itself. Its abundance is 2097148

Bases of 3145728

Binary: 1100000000000000000000₂
Hexadecimal: 0x300000
Base-36: 1VF9C

Squares and roots of 3145728

3145728 squared (3145728²) is 9895604649984
3145728 cubed (3145728³) is 31128880624384868352
The square root of 3145728 is 1773.6200269505
The cube root of 3145728 is 146.5234230469

Scales and comparisons

How big is 3145728?

3,145,728 seconds is equal to 5 weeks, 1 day, 9 hours, 48 minutes, 48 seconds.
To count from 1 to 3,145,728 would take you about seven 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 3145728 cubic inches would be around 12.2 feet tall.

Recreational maths with 3145728

3145728 backwards is 8275413
The number of decimal digits it has is: 7
The sum of 3145728's digits is 30
More coming soon!

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The information we have on file for 3145728 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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