72105138
72,105,138 is an even composite number composed of six prime numbers multiplied together.
What does the number 72105138 look like?
This visualization shows the relationship between its 6 prime factors (large circles) and 96 divisors.
72105138 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 72105138:
2 × 32 × 7 × 23 × 139 × 179
(2 × 3 × 3 × 7 × 23 × 139 × 179)See below for interesting mathematical facts about the number 72105138 from the Numbermatics database.
Names of 72105138
- Cardinal: 72105138 can be written as Seventy-two million, one hundred five thousand, one hundred thirty-eight.
Scientific notation
- Scientific notation: 7.2105138 × 107
Factors of 72105138
Divisors of 72105138
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 6 7 9 14 18 21 23 42 46 63 69 126 138 139 161 179 207 278 322 358 414 417 483 537 834 966 973 1074 1251 1253 1449 1611 1946 2502 2506 2898 2919 3197 3222 3759 4117 5838 6394 7518 8234 8757 9591 11277 12351 17514 19182 22379 22554 24702 24881 28773 28819 37053 44758 49762 57546 57638 67137 74106 74643 86457 134274 149286 172914 174167 201411 223929 259371 348334 402822 447858 518742 522501 572263 1045002 1144526 1567503 1716789 3135006 3433578 4005841 5150367 8011682 10300734 12017523 24035046 36052569 72105138
- Sum of all divisors σ(n): 188697600
- Sum of proper divisors (its aliquot sum) s(n): 116592462
- 72105138 is an abundant number, because the sum of its proper divisors (116592462) is greater than itself. Its abundance is 44487324
Bases of 72105138
- Binary: 1000100110000111100101100102
- Hexadecimal: 0x44C3CB2
- Base-36: 16XGOI
Squares and roots of 72105138
- 72105138 squared (721051382) is 5199150925999044
- 72105138 cubed (721051383) is 374885495001988855488072
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The
square root of 72105138 is 8491.4744302741 -
The
cube root of 72105138 is 416.2191622851
Scales and comparisons
How big is 72105138?- 72,105,138 seconds is equal to 2 years, 15 weeks, 1 day, 13 hours, 12 minutes, 18 seconds.
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To count from 1 to 72,105,138 would take you about three 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 72105138 cubic inches would be around 34.7 feet tall.
Recreational maths with 72105138
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The information we have on file for 72105138 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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