15981345990
15,981,345,990 is an even composite number composed of eight prime numbers multiplied together.
15981345990 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 15981345990:
2 × 32 × 5 × 23 × 31 × 37 × 53 × 127
(2 × 3 × 3 × 5 × 23 × 31 × 37 × 53 × 127)See below for interesting mathematical facts about the number 15981345990 from the Numbermatics database.
Names of 15981345990
- Cardinal: 15981345990 can be written as Fifteen billion, nine hundred eighty-one million, three hundred forty-five thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 1.598134599 × 1010
Factors of 15981345990
Divisors of 15981345990
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 3 5 6 9 10 15 18 23 30 31 37 45 46 53 62 69 74 90 93 106 111 115 127 138 155 159 185 186 207 222 230 254 265 279 310 318 333 345 370 381 414 465 477 530 555 558 635 666 690 713 762 795 851 930 954 1035 1110 1143 1147 1219 1270 1395 1426 1590 1643 1665 1702 1905 1961 2070 2139 2286 2294 2385 2438 2553 2790 2921 3286 3330 3441 3565 3657 3810 3922 3937 4255 4278 4699 4770 4929 5106 5715 5735 5842 5883 6095 6417 6731 6882 7130 7314 7659 7874 8215 8510 8763 9398 9805 9858 10323 10695 10971 11430 11470 11766 11811 12190 12765 12834 13462 14097 14605 14787 15318 16430 17205 17526 17649 18285 19610 19685 20193 20646 21390 21942 23495 23622 24645 25530 26289 26381 28194 29210 29415 29574 32085 33655 34410 35298 35433 36570 37789 38295 39370 40386 42291 43815 45103 46990 49290 51615 52578 52762 54855 58830 59055 60579 60791 64170 67310 70485 70866 73935 75578 76590 79143 84582 87630 88245 90206 90551 100965 103230 108077 109710 113367 118110 121158 121582 131445 131905 135309 140970 145669 147870 154813 158286 176490 177165 181102 182373 188945 201930 208661 211455 216154 225515 226734 237429 249047 262890 263810 270618 271653 291338 302895 303955 309626 324231 340101 354330 364746 377890 395715 405927 417322 422910 437007 451030 452755 464439 474858 498094 540385 543306 547119 566835 605790 607910 625983 648462 676545 680202 728345 747141 774065 791430 811854 814959 874014 905510 911865 928878 972693 1043305 1080770 1094238 1133670 1187145 1245235 1251966 1311021 1353090 1358265 1393317 1398193 1456690 1494282 1548130 1621155 1629918 1700505 1823730 1877949 1945386 2029635 2086610 2185035 2241423 2322195 2374290 2490470 2622042 2716530 2735595 2786634 2796386 3129915 3242310 3350387 3401010 3735705 3755898 4059270 4074795 4194579 4370070 4482846 4644390 4799203 4863465 5471190 5728081 6259830 6555105 6700774 6966585 6990965 7471410 7720457 8149590 8389158 9389745 9598406 9726930 10051161 11207115 11456162 12583737 13110210 13933170 13981930 14397609 15440914 16751935 17184243 18779490 20102322 20972895 22414230 23161371 23996015 25167474 28640405 28795218 30153483 33503870 34368486 38602285 41945790 43192827 46322742 47992030 50255805 51552729 57280810 60306966 62918685 69484113 71988045 77204570 85921215 86385654 100511610 103105458 115806855 125837370 138968226 143976090 150767415 171842430 177570511 215964135 231613710 257763645 301534830 347420565 355141022 431928270 515527290 532711533 694841130 887852555 1065423066 1598134599 1775705110 2663557665 3196269198 5327115330 7990672995 15981345990
- Sum of all divisors σ(n): 47202435072
- Sum of proper divisors (its aliquot sum) s(n): 31221089082
- 15981345990 is an abundant number, because the sum of its proper divisors (31221089082) is greater than itself. Its abundance is 15239743092
Bases of 15981345990
- Binary: 11101110001000111111111100110001102
- Hexadecimal: 0x3B88FFCC6
- Base-36: 7CAVPHI
Squares and roots of 15981345990
- 15981345990 squared (159813459902) is 255403419652089080100
- 15981345990 cubed (159813459903) is 4081690416489201015378923799000
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The
square root of 15981345990 is 126417.3484534461 -
The
cube root of 15981345990 is 2518.8624448115
Scales and comparisons
How big is 15981345990?- 15,981,345,990 seconds is equal to 508 years, 8 weeks, 1 day, 6 hours, 46 minutes, 30 seconds.
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To count from 1 to 15,981,345,990 would take you about one thousand and 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 15981345990 cubic inches would be around 209.9 feet tall.
Recreational maths with 15981345990
- 15981345990 backwards is 09954318951
- The number of decimal digits it has is: 11
- The sum of 15981345990's digits is 54
- More coming soon!
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