161728164
161,728,164 is an even composite number composed of four prime numbers multiplied together.
161728164 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 161728164:
22 × 35 × 13 × 12799
(2 × 2 × 3 × 3 × 3 × 3 × 3 × 13 × 12799)See below for interesting mathematical facts about the number 161728164 from the Numbermatics database.
Names of 161728164
- Cardinal: 161728164 can be written as One hundred sixty-one million, seven hundred twenty-eight thousand, one hundred sixty-four.
Scientific notation
- Scientific notation: 1.61728164 × 108
Factors of 161728164
Divisors of 161728164
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 3 4 6 9 12 13 18 26 27 36 39 52 54 78 81 108 117 156 162 234 243 324 351 468 486 702 972 1053 1404 2106 3159 4212 6318 12636 12799 25598 38397 51196 76794 115191 153588 166387 230382 332774 345573 460764 499161 665548 691146 998322 1036719 1382292 1497483 1996644 2073438 2994966 3110157 4146876 4492449 5989932 6220314 8984898 12440628 13477347 17969796 26954694 40432041 53909388 80864082 161728164
- Sum of all divisors σ(n): 456601600
- Sum of proper divisors (its aliquot sum) s(n): 294873436
- 161728164 is an abundant number, because the sum of its proper divisors (294873436) is greater than itself. Its abundance is 133145272
Bases of 161728164
- Binary: 10011010001111000110101001002
- Hexadecimal: 0x9A3C6A4
- Base-36: 2OAE90
Squares and roots of 161728164
- 161728164 squared (1617281642) is 26155999030810896
- 161728164 cubed (1617281643) is 4230161700838825641274944
-
The
square root of 161728164 is 12717.2388512601 -
The
cube root of 161728164 is 544.8310943071
Scales and comparisons
How big is 161728164?- 161,728,164 seconds is equal to 5 years, 7 weeks, 2 days, 20 hours, 29 minutes, 24 seconds.
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To count from 1 to 161,728,164 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 161728164 cubic inches would be around 45.4 feet tall.
Recreational maths with 161728164
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The information we have on file for 161728164 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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