128489472
128,489,472 is an even composite number composed of three prime numbers multiplied together.
128489472 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 128489472:
211 × 32 × 6971
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 6971)See below for interesting mathematical facts about the number 128489472 from the Numbermatics database.
Names of 128489472
- Cardinal: 128489472 can be written as One hundred twenty-eight million, four hundred eighty-nine thousand, four hundred seventy-two.
Scientific notation
- Scientific notation: 1.28489472 × 108
Factors of 128489472
Divisors of 128489472
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 256 288 384 512 576 768 1024 1152 1536 2048 2304 3072 4608 6144 6971 9216 13942 18432 20913 27884 41826 55768 62739 83652 111536 125478 167304 223072 250956 334608 446144 501912 669216 892288 1003824 1338432 1784576 2007648 2676864 3569152 4015296 5353728 7138304 8030592 10707456 14276608 16061184 21414912 32122368 42829824 64244736 128489472
- Sum of all divisors σ(n): 371154420
- Sum of proper divisors (its aliquot sum) s(n): 242664948
- 128489472 is an abundant number, because the sum of its proper divisors (242664948) is greater than itself. Its abundance is 114175476
Bases of 128489472
- Binary: 1111010100010011000000000002
- Hexadecimal: 0x7A89800
- Base-36: 24HZ40
Squares and roots of 128489472
- 128489472 squared (1284894722) is 16509544414838784
- 128489472 cubed (1284894723) is 2121302644823184321282048
-
The
square root of 128489472 is 11335.3196690699 -
The
cube root of 128489472 is 504.6099946037
Scales and comparisons
How big is 128489472?- 128,489,472 seconds is equal to 4 years, 4 weeks, 3 days, 3 hours, 31 minutes, 12 seconds.
-
To count from 1 to 128,489,472 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 128489472 cubic inches would be around 42.1 feet tall.
Recreational maths with 128489472
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The information we have on file for 128489472 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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