1280000

1,280,000 is an even composite number composed of two prime numbers multiplied together.

What does the number 1280000 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 60 divisors.

1280000 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of sixty divisors.

Prime factorization of 1280000:

2¹¹ × 5⁴

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 5 × 5)

See below for interesting mathematical facts about the number 1280000 from the Numbermatics database.

Names of 1280000

Cardinal: 1280000 can be written as One million, two hundred eighty thousand.

Scientific notation

Scientific notation: 1.28 × 10⁶

Factors of 1280000

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 15
Sum of prime factors: 7

Divisors of 1280000

Number of divisors d(n): 60
Complete list of divisors:
1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 256 320 400 500 512 625 640 800 1000 1024 1250 1280 1600 2000 2048 2500 2560 3200 4000 5000 5120 6400 8000 10000 10240 12800 16000 20000 25600 32000 40000 51200 64000 80000 128000 160000 256000 320000 640000 1280000
Sum of all divisors σ(n): 3198195
Sum of proper divisors (its aliquot sum) s(n): 1918195
1280000 is an abundant number, because the sum of its proper divisors (1918195) is greater than itself. Its abundance is 638195

Bases of 1280000

Binary: 100111000100000000000₂
Hexadecimal: 0x138800
Base-36: RFNK

Squares and roots of 1280000

1280000 squared (1280000²) is 1638400000000
1280000 cubed (1280000³) is 2097152000000000000
The square root of 1280000 is 1131.3708498983
The cube root of 1280000 is 108.5767046637

Scales and comparisons

How big is 1280000?

1,280,000 seconds is equal to 2 weeks, 19 hours, 33 minutes, 20 seconds.
To count from 1 to 1,280,000 would take you about three 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 1280000 cubic inches would be around 9 feet tall.

Recreational maths with 1280000

1280000 backwards is 0000821
The number of decimal digits it has is: 7
The sum of 1280000's digits is 11
More coming soon!

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The information we have on file for 1280000 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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