161109728
161,109,728 is an even composite number composed of three prime numbers multiplied together.
161109728 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 161109728:
25 × 132 × 313
(2 × 2 × 2 × 2 × 2 × 13 × 13 × 31 × 31 × 31)See below for interesting mathematical facts about the number 161109728 from the Numbermatics database.
Names of 161109728
- Cardinal: 161109728 can be written as One hundred sixty-one million, one hundred nine thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 1.61109728 × 108
Factors of 161109728
Divisors of 161109728
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 4 8 13 16 26 31 32 52 62 104 124 169 208 248 338 403 416 496 676 806 961 992 1352 1612 1922 2704 3224 3844 5239 5408 6448 7688 10478 12493 12896 15376 20956 24986 29791 30752 41912 49972 59582 83824 99944 119164 162409 167648 199888 238328 324818 387283 399776 476656 649636 774566 953312 1299272 1549132 2598544 3098264 5034679 5197088 6196528 10069358 12393056 20138716 40277432 80554864 161109728
- Sum of all divisors σ(n): 354908736
- Sum of proper divisors (its aliquot sum) s(n): 193799008
- 161109728 is an abundant number, because the sum of its proper divisors (193799008) is greater than itself. Its abundance is 32689280
Bases of 161109728
- Binary: 10011001101001010110111000002
- Hexadecimal: 0x99A56E0
- Base-36: 2NX528
Squares and roots of 161109728
- 161109728 squared (1611097282) is 25956344456233984
- 161109728 cubed (1611097283) is 4181819595218165066596352
-
The
square root of 161109728 is 12692.9006929071 -
The
cube root of 161109728 is 544.1357432305
Scales and comparisons
How big is 161109728?- 161,109,728 seconds is equal to 5 years, 6 weeks, 2 days, 16 hours, 42 minutes, 8 seconds.
-
To count from 1 to 161,109,728 would take you about seven 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 161109728 cubic inches would be around 45.3 feet tall.
Recreational maths with 161109728
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The information we have on file for 161109728 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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