15385842990
15,385,842,990 is an even composite number composed of eight prime numbers multiplied together.
What does the number 15385842990 look like?
This visualization shows the relationship between its 8 prime factors (large circles) and 384 divisors.
15385842990 is an even composite number. It is composed of eight distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 15385842990:
2 × 32 × 5 × 7 × 19 × 29 × 127 × 349
(2 × 3 × 3 × 5 × 7 × 19 × 29 × 127 × 349)See below for interesting mathematical facts about the number 15385842990 from the Numbermatics database.
Names of 15385842990
- Cardinal: 15385842990 can be written as Fifteen billion, three hundred eighty-five million, eight hundred forty-two thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 1.538584299 × 1010
Factors of 15385842990
Divisors of 15385842990
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 3 5 6 7 9 10 14 15 18 19 21 29 30 35 38 42 45 57 58 63 70 87 90 95 105 114 126 127 133 145 171 174 190 203 210 254 261 266 285 290 315 342 349 381 399 406 435 522 551 570 609 630 635 665 698 762 798 855 870 889 1015 1047 1102 1143 1197 1218 1270 1305 1330 1653 1710 1745 1778 1827 1905 1995 2030 2094 2286 2394 2413 2443 2610 2667 2755 3045 3141 3306 3490 3654 3683 3810 3857 3990 4445 4826 4886 4959 5235 5334 5510 5715 5985 6090 6282 6631 7239 7329 7366 7714 8001 8265 8890 9135 9918 10121 10470 11049 11430 11571 11970 12065 12215 13262 13335 14478 14658 15705 16002 16530 16891 18270 18415 19285 19893 20242 21717 21987 22098 23142 24130 24430 24795 25781 26670 30363 31410 33147 33155 33782 34713 36195 36645 36830 38570 39786 40005 43434 43974 44323 46417 49590 50605 50673 51562 55245 57855 59679 60726 66294 66310 69426 69977 70847 72390 73290 77343 80010 84455 88646 91089 92834 99465 101210 101346 108585 109935 110490 115710 119358 128905 132969 139251 139954 141694 151815 152019 154686 165735 168910 173565 182178 192299 198930 209931 212541 217170 219870 221615 232029 232085 253365 257810 265938 278502 298395 303630 304038 310261 331470 347130 349885 354235 384598 386715 398907 417753 419862 425082 443230 455445 464058 464170 489839 506730 576897 596790 620522 629793 637623 664845 696255 699770 708470 760095 773430 797814 835506 842137 910890 930783 961495 979678 1049655 1062705 1153794 1160145 1259586 1275246 1285367 1329690 1346093 1392510 1469517 1520190 1551305 1684274 1730691 1861566 1922990 1994535 2088765 2099310 2125410 2320290 2449195 2526411 2570734 2692186 2792349 2884485 2939034 3102610 3148965 3188115 3461382 3856101 3989070 4038279 4177530 4210685 4408551 4653915 4898390 5052822 5584698 5768970 5894959 6297930 6376230 6426835 6730465 7347585 7579233 7712202 8076558 8421370 8653455 8817102 8997569 9307830 11568303 11789918 12114837 12632055 12853670 13460930 13961745 14695170 15158466 17306910 17684877 17995138 19280505 20191395 22042755 23136606 24229674 24421973 25264110 26992707 27923490 29474795 35369754 37896165 38561010 40382790 44085510 44987845 48843946 53054631 53985414 57841515 58949590 60574185 73265919 75792330 80978121 88424385 89975690 106109262 115683030 121148370 122109865 134963535 146531838 161956242 170953811 176848770 219797757 244219730 265273155 269927070 341907622 366329595 404890605 439595514 512861433 530546310 732659190 809781210 854769055 1025722866 1098988785 1538584299 1709538110 2197977570 2564307165 3077168598 5128614330 7692921495 15385842990
- Sum of all divisors σ(n): 50319360000
- Sum of proper divisors (its aliquot sum) s(n): 34933517010
- 15385842990 is an abundant number, because the sum of its proper divisors (34933517010) is greater than itself. Its abundance is 19547674020
Bases of 15385842990
- Binary: 11100101010001000101010101001011102
- Hexadecimal: 0x39511552E
- Base-36: 72GC0FI
Squares and roots of 15385842990
- 15385842990 squared (153858429902) is 236724164512932140100
- 15385842990 cubed (153858429903) is 3642200827134903732103282899000
-
The
square root of 15385842990 is 124039.6831260061 -
The
cube root of 15385842990 is 2487.1793239643
Scales and comparisons
How big is 15385842990?- 15,385,842,990 seconds is equal to 489 years, 11 weeks, 3 days, 21 hours, 16 minutes, 30 seconds.
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To count from 1 to 15,385,842,990 would take you about nine hundred seventy-eight 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 15385842990 cubic inches would be around 207.3 feet tall.
Recreational maths with 15385842990
- 15385842990 backwards is 09924858351
- The number of decimal digits it has is: 11
- The sum of 15385842990's digits is 54
- More coming soon!
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