81338040
81,338,040 is an even composite number composed of six prime numbers multiplied together.
81338040 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 81338040:
23 × 33 × 5 × 72 × 29 × 53
(2 × 2 × 2 × 3 × 3 × 3 × 5 × 7 × 7 × 29 × 53)See below for interesting mathematical facts about the number 81338040 from the Numbermatics database.
Names of 81338040
- Cardinal: 81338040 can be written as Eighty-one million, three hundred thirty-eight thousand and forty.
Scientific notation
- Scientific notation: 8.133804 × 107
Factors of 81338040
Divisors of 81338040
- Number of divisors d(n): 384
-
Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 27 28 29 30 35 36 40 42 45 49 53 54 56 58 60 63 70 72 84 87 90 98 105 106 108 116 120 126 135 140 145 147 159 168 174 180 189 196 203 210 212 216 232 245 252 261 265 270 280 290 294 315 318 348 360 371 378 392 406 420 424 435 441 477 490 504 522 530 540 580 588 609 630 636 696 735 742 756 783 795 812 840 870 882 945 954 980 1015 1044 1060 1080 1113 1160 1176 1218 1260 1272 1305 1323 1421 1431 1470 1484 1512 1537 1566 1590 1624 1740 1764 1827 1855 1890 1908 1960 2030 2088 2120 2205 2226 2385 2436 2520 2597 2610 2646 2842 2862 2940 2968 3045 3074 3132 3180 3339 3480 3528 3654 3710 3780 3816 3915 4060 4263 4410 4452 4611 4770 4872 5194 5220 5292 5481 5565 5684 5724 5880 6090 6148 6264 6360 6615 6678 7105 7155 7308 7420 7560 7685 7791 7830 8120 8526 8820 8904 9135 9222 9540 10017 10388 10440 10584 10759 10962 11130 11368 11448 12180 12296 12789 12985 13230 13356 13833 14210 14310 14616 14840 15370 15582 15660 16695 17052 17640 18270 18444 19080 20034 20776 21315 21518 21924 22260 23055 23373 24360 25578 25970 26460 26712 27405 27666 28420 28620 30740 31164 31320 32277 33390 34104 36540 36888 38367 38955 40068 41499 42630 43036 43848 44520 46110 46746 50085 51156 51940 52920 53795 54810 55332 56840 57240 61480 62328 63945 64554 66780 69165 70119 73080 75313 76734 77910 80136 82998 85260 86072 92220 93492 96831 100170 102312 103880 107590 109620 110664 116865 127890 129108 133560 138330 140238 150626 153468 155820 161385 165996 170520 184440 186984 191835 193662 200340 207495 215180 219240 225939 233730 255780 258216 276660 280476 290493 301252 306936 311640 322770 331992 350595 376565 383670 387324 400680 414990 430360 451878 467460 484155 511560 553320 560952 580986 602504 645540 677817 701190 753130 767340 774648 829980 903756 934920 968310 1129695 1161972 1291080 1355634 1402380 1452465 1506260 1534680 1659960 1807512 1936620 2033451 2259390 2323944 2711268 2804760 2904930 3012520 3389085 3873240 4066902 4518780 5422536 5809860 6778170 8133804 9037560 10167255 11619720 13556340 16267608 20334510 27112680 40669020 81338040
- Sum of all divisors σ(n): 332424000
- Sum of proper divisors (its aliquot sum) s(n): 251085960
- 81338040 is an abundant number, because the sum of its proper divisors (251085960) is greater than itself. Its abundance is 169747920
Bases of 81338040
- Binary: 1001101100100011110101110002
- Hexadecimal: 0x4D91EB8
- Base-36: 1CFCU0
Squares and roots of 81338040
- 81338040 squared (813380402) is 6615876751041600
- 81338040 cubed (813380403) is 538122447811291702464000
-
The
square root of 81338040 is 9018.7604469793 -
The
cube root of 81338040 is 433.2759345407
Scales and comparisons
How big is 81338040?- 81,338,040 seconds is equal to 2 years, 30 weeks, 3 days, 9 hours, 54 minutes.
-
To count from 1 to 81,338,040 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 81338040 cubic inches would be around 36.1 feet tall.
Recreational maths with 81338040
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 81338040 - Facts about the integer". Numbermatics.com. 2024. Web. 5 May 2024.
APA style:
Numbermatics. (2024). Number 81338040 - Facts about the integer. Retrieved 5 May 2024, from https://numbermatics.com/n/81338040/
Chicago style:
Numbermatics. 2024. "Number 81338040 - Facts about the integer". https://numbermatics.com/n/81338040/
The information we have on file for 81338040 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 81338040, math, Factors of 81338040, curriculum, school, college, exams, university, Prime factorization of 81338040, STEM, science, technology, engineering, physics, economics, calculator, eighty-one million, three hundred thirty-eight thousand and forty.