21248640
21,248,640 is an even composite number composed of six prime numbers multiplied together.
21248640 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 21248640:
27 × 32 × 5 × 7 × 17 × 31
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 7 × 17 × 31)See below for interesting mathematical facts about the number 21248640 from the Numbermatics database.
Names of 21248640
- Cardinal: 21248640 can be written as Twenty-one million, two hundred forty-eight thousand, six hundred forty.
Scientific notation
- Scientific notation: 2.124864 × 107
Factors of 21248640
Divisors of 21248640
- Number of divisors d(n): 384
-
Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 16 17 18 20 21 24 28 30 31 32 34 35 36 40 42 45 48 51 56 60 62 63 64 68 70 72 80 84 85 90 93 96 102 105 112 119 120 124 126 128 136 140 144 153 155 160 168 170 180 186 192 204 210 217 224 238 240 248 252 255 272 279 280 288 306 310 315 320 336 340 357 360 372 384 408 420 434 448 465 476 480 496 504 510 527 544 558 560 576 595 612 620 630 640 651 672 680 714 720 744 765 816 840 868 896 930 952 960 992 1008 1020 1054 1071 1085 1088 1116 1120 1152 1190 1224 1240 1260 1302 1344 1360 1395 1428 1440 1488 1530 1581 1632 1680 1736 1785 1860 1904 1920 1953 1984 2016 2040 2108 2142 2170 2176 2232 2240 2380 2448 2480 2520 2604 2635 2688 2720 2790 2856 2880 2976 3060 3162 3255 3264 3360 3472 3570 3689 3720 3808 3906 3968 4032 4080 4216 4284 4340 4464 4480 4743 4760 4896 4960 5040 5208 5270 5355 5440 5580 5712 5760 5952 6120 6324 6510 6528 6720 6944 7140 7378 7440 7616 7812 7905 8064 8160 8432 8568 8680 8928 9486 9520 9765 9792 9920 10080 10416 10540 10710 10880 11067 11160 11424 11904 12240 12648 13020 13440 13888 14280 14756 14880 15232 15624 15810 16320 16864 17136 17360 17856 18445 18972 19040 19530 19584 19840 20160 20832 21080 21420 22134 22320 22848 23715 24480 25296 26040 27776 28560 29512 29760 31248 31620 32640 33201 33728 34272 34720 35712 36890 37944 38080 39060 40320 41664 42160 42840 44268 44640 45696 47430 48960 50592 52080 55335 57120 59024 59520 62496 63240 66402 67456 68544 69440 73780 75888 76160 78120 83328 84320 85680 88536 89280 94860 97920 101184 104160 110670 114240 118048 124992 126480 132804 137088 138880 147560 151776 156240 166005 168640 171360 177072 178560 189720 202368 208320 221340 228480 236096 249984 252960 265608 295120 303552 312480 332010 337280 342720 354144 379440 416640 442680 472192 505920 531216 590240 607104 624960 664020 685440 708288 758880 885360 1011840 1062432 1180480 1249920 1328040 1416576 1517760 1770720 2124864 2360960 2656080 3035520 3541440 4249728 5312160 7082880 10624320 21248640
- Sum of all divisors σ(n): 91653120
- Sum of proper divisors (its aliquot sum) s(n): 70404480
- 21248640 is an abundant number, because the sum of its proper divisors (70404480) is greater than itself. Its abundance is 49155840
Bases of 21248640
- Binary: 10100010000111010100000002
- Hexadecimal: 0x1443A80
- Base-36: CNFK0
Squares and roots of 21248640
- 21248640 squared (212486402) is 451504701849600
- 21248640 cubed (212486403) is 9593860867909484544000
-
The
square root of 21248640 is 4609.6247135749 -
The
cube root of 21248640 is 276.9770037429
Scales and comparisons
How big is 21248640?- 21,248,640 seconds is equal to 35 weeks, 22 hours, 24 minutes.
-
To count from 1 to 21,248,640 would take you about four days!
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 21248640 cubic inches would be around 23.1 feet tall.
Recreational maths with 21248640
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 21248640 - Facts about the integer". Numbermatics.com. 2024. Web. 19 April 2024.
APA style:
Numbermatics. (2024). Number 21248640 - Facts about the integer. Retrieved 19 April 2024, from https://numbermatics.com/n/21248640/
Chicago style:
Numbermatics. 2024. "Number 21248640 - Facts about the integer". https://numbermatics.com/n/21248640/
The information we have on file for 21248640 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 21248640, math, Factors of 21248640, curriculum, school, college, exams, university, Prime factorization of 21248640, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, two hundred forty-eight thousand, six hundred forty.