128221440
128,221,440 is an even composite number composed of four prime numbers multiplied together.
128221440 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 128221440:
28 × 3 × 5 × 33391
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 33391)See below for interesting mathematical facts about the number 128221440 from the Numbermatics database.
Names of 128221440
- Cardinal: 128221440 can be written as One hundred twenty-eight million, two hundred twenty-one thousand, four hundred forty.
Scientific notation
- Scientific notation: 1.2822144 × 108
Factors of 128221440
Divisors of 128221440
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 640 768 960 1280 1920 3840 33391 66782 100173 133564 166955 200346 267128 333910 400692 500865 534256 667820 801384 1001730 1068512 1335640 1602768 2003460 2137024 2671280 3205536 4006920 4274048 5342560 6411072 8013840 8548096 10685120 12822144 16027680 21370240 25644288 32055360 42740480 64110720 128221440
- Sum of all divisors σ(n): 409519488
- Sum of proper divisors (its aliquot sum) s(n): 281298048
- 128221440 is an abundant number, because the sum of its proper divisors (281298048) is greater than itself. Its abundance is 153076608
Bases of 128221440
- Binary: 1111010010010000001000000002
- Hexadecimal: 0x7A48100
- Base-36: 24C8AO
Squares and roots of 128221440
- 128221440 squared (1282214402) is 16440737675673600
- 128221440 cubed (1282214403) is 2108055059437121961984000
-
The
square root of 128221440 is 11323.4906278939 -
The
cube root of 128221440 is 504.2588743159
Scales and comparisons
How big is 128221440?- 128,221,440 seconds is equal to 4 years, 4 weeks, 1 hour, 4 minutes.
-
To count from 1 to 128,221,440 would take you about six 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 128221440 cubic inches would be around 42 feet tall.
Recreational maths with 128221440
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"Number 128221440 - Facts about the integer". Numbermatics.com. 2024. Web. 9 June 2024.
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The information we have on file for 128221440 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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