85129728
85,129,728 is an even composite number composed of four prime numbers multiplied together.
85129728 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 85129728:
29 × 3 × 19 × 2917
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 19 × 2917)See below for interesting mathematical facts about the number 85129728 from the Numbermatics database.
Names of 85129728
- Cardinal: 85129728 can be written as Eighty-five million, one hundred twenty-nine thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 8.5129728 × 107
Factors of 85129728
Divisors of 85129728
- Number of divisors d(n): 80
-
Complete list of divisors:
1 2 3 4 6 8 12 16 19 24 32 38 48 57 64 76 96 114 128 152 192 228 256 304 384 456 512 608 768 912 1216 1536 1824 2432 2917 3648 4864 5834 7296 8751 9728 11668 14592 17502 23336 29184 35004 46672 55423 70008 93344 110846 140016 166269 186688 221692 280032 332538 373376 443384 560064 665076 746752 886768 1120128 1330152 1493504 1773536 2240256 2660304 3547072 4480512 5320608 7094144 10641216 14188288 21282432 28376576 42564864 85129728
- Sum of all divisors σ(n): 238809120
- Sum of proper divisors (its aliquot sum) s(n): 153679392
- 85129728 is an abundant number, because the sum of its proper divisors (153679392) is greater than itself. Its abundance is 68549664
Bases of 85129728
- Binary: 1010001001011111010000000002
- Hexadecimal: 0x512FA00
- Base-36: 1EOMIO
Squares and roots of 85129728
- 85129728 squared (851297282) is 7247070589353984
- 85129728 cubed (851297283) is 616941148068504353636352
-
The
square root of 85129728 is 9226.5772635361 -
The
cube root of 85129728 is 439.9065366219
Scales and comparisons
How big is 85129728?- 85,129,728 seconds is equal to 2 years, 36 weeks, 5 days, 7 hours, 8 minutes, 48 seconds.
-
To count from 1 to 85,129,728 would take you about four 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 85129728 cubic inches would be around 36.7 feet tall.
Recreational maths with 85129728
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The information we have on file for 85129728 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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