12840646400
12,840,646,400 is an even composite number composed of five prime numbers multiplied together.
12840646400 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred sixteen divisors.
Prime factorization of 12840646400:
28 × 52 × 31 × 61 × 1061
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 31 × 61 × 1061)See below for interesting mathematical facts about the number 12840646400 from the Numbermatics database.
Names of 12840646400
- Cardinal: 12840646400 can be written as Twelve billion, eight hundred forty million, six hundred forty-six thousand, four hundred.
Scientific notation
- Scientific notation: 1.28406464 × 1010
Factors of 12840646400
Divisors of 12840646400
- Number of divisors d(n): 216
-
Complete list of divisors:
1 2 4 5 8 10 16 20 25 31 32 40 50 61 62 64 80 100 122 124 128 155 160 200 244 248 256 305 310 320 400 488 496 610 620 640 775 800 976 992 1061 1220 1240 1280 1525 1550 1600 1891 1952 1984 2122 2440 2480 3050 3100 3200 3782 3904 3968 4244 4880 4960 5305 6100 6200 6400 7564 7808 7936 8488 9455 9760 9920 10610 12200 12400 15128 15616 16976 18910 19520 19840 21220 24400 24800 26525 30256 32891 33952 37820 39040 39680 42440 47275 48800 49600 53050 60512 64721 65782 67904 75640 78080 84880 94550 97600 99200 106100 121024 129442 131564 135808 151280 164455 169760 189100 195200 198400 212200 242048 258884 263128 271616 302560 323605 328910 339520 378200 390400 424400 484096 517768 526256 605120 647210 657820 679040 756400 822275 848800 1035536 1052512 1210240 1294420 1315640 1358080 1512800 1618025 1644550 1697600 2006351 2071072 2105024 2420480 2588840 2631280 3025600 3236050 3289100 3395200 4012702 4142144 4210048 5177680 5262560 6051200 6472100 6578200 6790400 8025404 8284288 8420096 10031755 10355360 10525120 12102400 12944200 13156400 16050808 16568576 20063510 20710720 21050240 25888400 26312800 32101616 40127020 41421440 42100480 50158775 51776800 52625600 64203232 80254040 82842880 100317550 103553600 105251200 128406464 160508080 200635100 207107200 210502400 256812928 321016160 401270200 414214400 513625856 642032320 802540400 1284064640 1605080800 2568129280 3210161600 6420323200 12840646400
- Sum of all divisors σ(n): 33377113728
- Sum of proper divisors (its aliquot sum) s(n): 20536467328
- 12840646400 is an abundant number, because the sum of its proper divisors (20536467328) is greater than itself. Its abundance is 7695820928
Bases of 12840646400
- Binary: 10111111010101110010110111000000002
- Hexadecimal: 0x2FD5CB700
- Base-36: 5WCZM68
Squares and roots of 12840646400
- 12840646400 squared (128406464002) is 164882199969832960000
- 12840646400 cubed (128406464003) is 2117194027466715706425344000000
-
The
square root of 12840646400 is 113316.5760160445 -
The
cube root of 12840646400 is 2341.6876324973
Scales and comparisons
How big is 12840646400?- 12,840,646,400 seconds is equal to 408 years, 15 weeks, 1 day, 14 hours, 13 minutes, 20 seconds.
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To count from 1 to 12,840,646,400 would take you about eight hundred sixteen 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 12840646400 cubic inches would be around 195.1 feet tall.
Recreational maths with 12840646400
- 12840646400 backwards is 00464604821
- The number of decimal digits it has is: 11
- The sum of 12840646400's digits is 35
- More coming soon!
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