30987138
30,987,138 is an even composite number composed of seven prime numbers multiplied together.
30987138 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 30987138:
2 × 3 × 7 × 13 × 19 × 29 × 103
See below for interesting mathematical facts about the number 30987138 from the Numbermatics database.
Names of 30987138
- Cardinal: 30987138 can be written as Thirty million, nine hundred eighty-seven thousand, one hundred thirty-eight.
Scientific notation
- Scientific notation: 3.0987138 × 107
Factors of 30987138
Divisors of 30987138
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 6 7 13 14 19 21 26 29 38 39 42 57 58 78 87 91 103 114 133 174 182 203 206 247 266 273 309 377 399 406 494 546 551 609 618 721 741 754 798 1102 1131 1218 1339 1442 1482 1653 1729 1957 2163 2262 2639 2678 2987 3306 3458 3857 3914 4017 4326 5187 5278 5871 5974 7163 7714 7917 8034 8961 9373 10374 11571 11742 13699 14326 15834 17922 18746 20909 21489 23142 25441 27398 28119 38831 41097 41818 42978 50141 50882 56238 56753 62727 76323 77662 82194 100282 113506 116493 125454 150423 152646 170259 178087 232986 271817 300846 340518 356174 397271 534261 543634 737789 794542 815451 1068522 1191813 1475578 1630902 2213367 2383626 4426734 5164523 10329046 15493569 30987138
- Sum of all divisors σ(n): 83865600
- Sum of proper divisors (its aliquot sum) s(n): 52878462
- 30987138 is an abundant number, because the sum of its proper divisors (52878462) is greater than itself. Its abundance is 21891324
Bases of 30987138
- Binary: 11101100011010011100000102
- Hexadecimal: 0x1D8D382
- Base-36: IG5TU
Squares and roots of 30987138
- 30987138 squared (309871382) is 960202721431044
- 30987138 cubed (309871383) is 29753934236959317912072
-
The
square root of 30987138 is 5566.6092013001 -
The
cube root of 30987138 is 314.0946135967
Scales and comparisons
How big is 30987138?- 30,987,138 seconds is equal to 51 weeks, 1 day, 15 hours, 32 minutes, 18 seconds.
-
To count from 1 to 30,987,138 would take you about twenty-four weeks!
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 30987138 cubic inches would be around 26.2 feet tall.
Recreational maths with 30987138
Link to this page
HTML: To link to this page, just copy and paste the link below into your blog, web page or email.
BBCODE: To link to this page in a forum post or comment box, just copy and paste the link code below:
Cite this page
MLA style:
"Number 30987138 - Facts about the integer". Numbermatics.com. 2024. Web. 27 April 2024.
APA style:
Numbermatics. (2024). Number 30987138 - Facts about the integer. Retrieved 27 April 2024, from https://numbermatics.com/n/30987138/
Chicago style:
Numbermatics. 2024. "Number 30987138 - Facts about the integer". https://numbermatics.com/n/30987138/
The information we have on file for 30987138 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!
Keywords: Divisors of 30987138, math, Factors of 30987138, curriculum, school, college, exams, university, Prime factorization of 30987138, STEM, science, technology, engineering, physics, economics, calculator, thirty million, nine hundred eighty-seven thousand, one hundred thirty-eight.