2978728

2,978,728 is an even composite number composed of three prime numbers multiplied together.

What does the number 2978728 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 16 divisors.

2978728 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 2978728:

2³ × 31 × 12011

(2 × 2 × 2 × 31 × 12011)

See below for interesting mathematical facts about the number 2978728 from the Numbermatics database.

Names of 2978728

Cardinal: 2978728 can be written as Two million, nine hundred seventy-eight thousand, seven hundred twenty-eight.

Scientific notation

Scientific notation: 2.978728 × 10⁶

Factors of 2978728

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 5
Sum of prime factors: 12044

Divisors of 2978728

Number of divisors d(n): 16
Complete list of divisors:
1 2 4 8 31 62 124 248 12011 24022 48044 96088 372341 744682 1489364 2978728
Sum of all divisors σ(n): 5765760
Sum of proper divisors (its aliquot sum) s(n): 2787032
2978728 is a deficient number, because the sum of its proper divisors (2787032) is less than itself. Its deficiency is 191696

Bases of 2978728

Binary: 1011010111001110101000₂
Hexadecimal: 0x2D73A8
Base-36: 1RUEG

Squares and roots of 2978728

2978728 squared (2978728²) is 8872820497984
2978728 cubed (2978728³) is 26429718856318884352
The square root of 2978728 is 1725.8991859319
The cube root of 2978728 is 143.8832644459

Scales and comparisons

How big is 2978728?

2,978,728 seconds is equal to 4 weeks, 6 days, 11 hours, 25 minutes, 28 seconds.
To count from 1 to 2,978,728 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 2978728 cubic inches would be around 12 feet tall.

Recreational maths with 2978728

2978728 backwards is 8278792
The number of decimal digits it has is: 7
The sum of 2978728's digits is 43
More coming soon!

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The information we have on file for 2978728 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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