12813840
12,813,840 is an even composite number composed of five prime numbers multiplied together.
12813840 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred eighty divisors.
Prime factorization of 12813840:
24 × 32 × 5 × 13 × 372
(2 × 2 × 2 × 2 × 3 × 3 × 5 × 13 × 37 × 37)See below for interesting mathematical facts about the number 12813840 from the Numbermatics database.
Names of 12813840
- Cardinal: 12813840 can be written as Twelve million, eight hundred thirteen thousand, eight hundred forty.
Scientific notation
- Scientific notation: 1.281384 × 107
Factors of 12813840
Divisors of 12813840
- Number of divisors d(n): 180
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 30 36 37 39 40 45 48 52 60 65 72 74 78 80 90 104 111 117 120 130 144 148 156 180 185 195 208 222 234 240 260 296 312 333 360 370 390 444 468 481 520 555 585 592 624 666 720 740 780 888 936 962 1040 1110 1170 1332 1369 1443 1480 1560 1665 1776 1872 1924 2220 2340 2405 2664 2738 2886 2960 3120 3330 3848 4107 4329 4440 4680 4810 5328 5476 5772 6660 6845 7215 7696 8214 8658 8880 9360 9620 10952 11544 12321 13320 13690 14430 16428 17316 17797 19240 20535 21645 21904 23088 24642 26640 27380 28860 32856 34632 35594 38480 41070 43290 49284 53391 54760 57720 61605 65712 69264 71188 82140 86580 88985 98568 106782 109520 115440 123210 142376 160173 164280 173160 177970 197136 213564 246420 266955 284752 320346 328560 346320 355940 427128 492840 533910 640692 711880 800865 854256 985680 1067820 1281384 1423760 1601730 2135640 2562768 3203460 4271280 6406920 12813840
- Sum of all divisors σ(n): 47629764
- Sum of proper divisors (its aliquot sum) s(n): 34815924
- 12813840 is an abundant number, because the sum of its proper divisors (34815924) is greater than itself. Its abundance is 22002084
Bases of 12813840
- Binary: 1100001110000110000100002
- Hexadecimal: 0xC38610
- Base-36: 7MN80
Squares and roots of 12813840
- 12813840 squared (128138402) is 164194495545600
- 12813840 cubed (128138403) is 2103961994802031104000
-
The
square root of 12813840 is 3579.6424402445 -
The
cube root of 12813840 is 234.0056978669
Scales and comparisons
How big is 12813840?- 12,813,840 seconds is equal to 21 weeks, 1 day, 7 hours, 24 minutes.
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To count from 1 to 12,813,840 would take you about thirty-one 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 12813840 cubic inches would be around 19.5 feet tall.
Recreational maths with 12813840
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The information we have on file for 12813840 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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