12891939840
12,891,939,840 is an even composite number composed of five prime numbers multiplied together.
12891939840 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred sixty-four divisors.
Prime factorization of 12891939840:
210 × 32 × 5 × 13 × 21521
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 13 × 21521)See below for interesting mathematical facts about the number 12891939840 from the Numbermatics database.
Names of 12891939840
- Cardinal: 12891939840 can be written as Twelve billion, eight hundred ninety-one million, nine hundred thirty-nine thousand, eight hundred forty.
Scientific notation
- Scientific notation: 1.289193984 × 1010
Factors of 12891939840
Divisors of 12891939840
- Number of divisors d(n): 264
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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 32 36 39 40 45 48 52 60 64 65 72 78 80 90 96 104 117 120 128 130 144 156 160 180 192 195 208 234 240 256 260 288 312 320 360 384 390 416 468 480 512 520 576 585 624 640 720 768 780 832 936 960 1024 1040 1152 1170 1248 1280 1440 1536 1560 1664 1872 1920 2080 2304 2340 2496 2560 2880 3072 3120 3328 3744 3840 4160 4608 4680 4992 5120 5760 6240 6656 7488 7680 8320 9216 9360 9984 11520 12480 13312 14976 15360 16640 18720 19968 21521 23040 24960 29952 33280 37440 39936 43042 46080 49920 59904 64563 66560 74880 86084 99840 107605 119808 129126 149760 172168 193689 199680 215210 258252 279773 299520 322815 344336 387378 430420 516504 559546 599040 645630 688672 774756 839319 860840 968445 1033008 1119092 1291260 1377344 1398865 1549512 1678638 1721680 1936890 2066016 2238184 2517957 2582520 2754688 2797730 3099024 3357276 3443360 3873780 4132032 4196595 4476368 5035914 5165040 5509376 5595460 6198048 6714552 6886720 7747560 8264064 8393190 8952736 10071828 10330080 11018752 11190920 12396096 12589785 13429104 13773440 15495120 16528128 16786380 17905472 20143656 20660160 22037504 22381840 24792192 25179570 26858208 27546880 30990240 33056256 33572760 35810944 40287312 41320320 44763680 49584384 50359140 53716416 55093760 61980480 66112512 67145520 71621888 80574624 82640640 89527360 99168768 100718280 107432832 110187520 123960960 134291040 143243776 161149248 165281280 179054720 198337536 201436560 214865664 247921920 268582080 286487552 322298496 330562560 358109440 402873120 429731328 495843840 537164160 644596992 716218880 805746240 859462656 991687680 1074328320 1289193984 1432437760 1611492480 2148656640 2578387968 3222984960 4297313280 6445969920 12891939840
- Sum of all divisors σ(n): 48108643128
- Sum of proper divisors (its aliquot sum) s(n): 35216703288
- 12891939840 is an abundant number, because the sum of its proper divisors (35216703288) is greater than itself. Its abundance is 22324763448
Bases of 12891939840
- Binary: 11000000000110101101100100000000002
- Hexadecimal: 0x3006B6400
- Base-36: 5X7J0G0
Squares and roots of 12891939840
- 12891939840 squared (128919398402) is 166202112838179225600
- 12891939840 cubed (128919398403) is 2142667639990698231572987904000
-
The
square root of 12891939840 is 113542.6784957973 -
The
cube root of 12891939840 is 2344.8015368127
Scales and comparisons
How big is 12891939840?- 12,891,939,840 seconds is equal to 409 years, 48 weeks, 6 hours, 24 minutes.
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To count from 1 to 12,891,939,840 would take you about eight hundred nineteen 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 12891939840 cubic inches would be around 195.4 feet tall.
Recreational maths with 12891939840
- 12891939840 backwards is 04893919821
- The number of decimal digits it has is: 11
- The sum of 12891939840's digits is 54
- More coming soon!
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