18139568720
18,139,568,720 is an even composite number composed of six prime numbers multiplied together.
18139568720 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 18139568720:
24 × 5 × 73 × 13 × 211 × 241
(2 × 2 × 2 × 2 × 5 × 7 × 7 × 7 × 13 × 211 × 241)See below for interesting mathematical facts about the number 18139568720 from the Numbermatics database.
Names of 18139568720
- Cardinal: 18139568720 can be written as Eighteen billion, one hundred thirty-nine million, five hundred sixty-eight thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 1.813956872 × 1010
Factors of 18139568720
Divisors of 18139568720
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 4 5 7 8 10 13 14 16 20 26 28 35 40 49 52 56 65 70 80 91 98 104 112 130 140 182 196 208 211 241 245 260 280 343 364 392 422 455 482 490 520 560 637 686 728 784 844 910 964 980 1040 1055 1205 1274 1372 1456 1477 1687 1688 1715 1820 1928 1960 2110 2410 2548 2743 2744 2954 3133 3185 3374 3376 3430 3640 3856 3920 4220 4459 4820 5096 5486 5488 5908 6266 6370 6748 6860 7280 7385 8435 8440 8918 9640 10192 10339 10972 11809 11816 12532 12740 13496 13715 13720 14770 15665 16870 16880 17836 19201 19280 20678 21931 21944 22295 23618 23632 25064 25480 26992 27430 27440 29540 31330 33740 35672 38402 41356 43862 43888 44590 47236 50128 50851 50960 51695 54860 59045 59080 62660 67480 71344 72373 76804 82663 82712 87724 89180 94472 96005 101702 103390 109655 109720 118090 118160 125320 134407 134960 144746 153517 153608 165326 165424 175448 178360 188944 192010 203404 206780 219310 219440 236180 250640 254255 268814 289492 307034 307216 330652 350896 355957 356720 361865 384020 406808 413315 413560 438620 472360 508510 537628 578984 614068 661063 661304 672035 711914 723730 767585 768040 813616 826630 827120 877240 940849 944720 1017020 1074619 1075256 1157968 1228136 1322126 1322608 1344070 1423828 1447460 1535170 1536080 1653260 1754480 1779785 1881698 2034040 2149238 2150512 2456272 2491699 2644252 2688140 2847656 2894920 3070340 3305315 3306520 3559570 3763396 4068080 4298476 4627441 4704245 4983398 5288504 5373095 5376280 5695312 5789840 6140680 6610630 6613040 7119140 7526792 8596952 9254882 9408490 9966796 10577008 10746190 10752560 12281360 12458495 13221260 14238280 15053584 17193904 17441893 18509764 18816980 19933592 21492380 23137205 24916990 26442520 28476560 32392087 34883786 37019528 37633960 39867184 42984760 46274410 49833980 52885040 64784174 69767572 74039056 75267920 85969520 87209465 92548820 99667960 129568348 139535144 161960435 174418930 185097640 199335920 226744609 259136696 279070288 323920870 348837860 370195280 453489218 518273392 647841740 697675720 906978436 1133723045 1295683480 1395351440 1813956872 2267446090 2591366960 3627913744 4534892180 9069784360 18139568720
- Sum of all divisors σ(n): 53438246400
- Sum of proper divisors (its aliquot sum) s(n): 35298677680
- 18139568720 is an abundant number, because the sum of its proper divisors (35298677680) is greater than itself. Its abundance is 17159108960
Bases of 18139568720
- Binary: 100001110010011001111011010010100002
- Hexadecimal: 0x43933DA50
- Base-36: 8BZTWSW
Squares and roots of 18139568720
- 18139568720 squared (181395687202) is 329043953347602438400
- 18139568720 cubed (181395687203) is 5968715403649308478596366848000
-
The
square root of 18139568720 is 134683.2161778149 -
The
cube root of 18139568720 is 2627.4975459291
Scales and comparisons
How big is 18139568720?- 18,139,568,720 seconds is equal to 576 years, 40 weeks, 4 days, 17 hours, 5 minutes, 20 seconds.
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To count from 1 to 18,139,568,720 would take you about one thousand, one hundred fifty-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 18139568720 cubic inches would be around 219 feet tall.
Recreational maths with 18139568720
- 18139568720 backwards is 02786593181
- The number of decimal digits it has is: 11
- The sum of 18139568720's digits is 50
- More coming soon!
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