21391998012
21,391,998,012 is an even composite number composed of seven prime numbers multiplied together.
21391998012 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of six hundred forty-eight divisors.
Prime factorization of 21391998012:
22 × 32 × 72 × 112 × 31 × 53 × 61
(2 × 2 × 3 × 3 × 7 × 7 × 11 × 11 × 31 × 53 × 61)See below for interesting mathematical facts about the number 21391998012 from the Numbermatics database.
Names of 21391998012
- Cardinal: 21391998012 can be written as Twenty-one billion, three hundred ninety-one million, nine hundred ninety-eight thousand and twelve.
Scientific notation
- Scientific notation: 2.1391998012 × 1010
Factors of 21391998012
Divisors of 21391998012
- Number of divisors d(n): 648
-
Complete list of divisors:
1 2 3 4 6 7 9 11 12 14 18 21 22 28 31 33 36 42 44 49 53 61 62 63 66 77 84 93 98 99 106 121 122 124 126 132 147 154 159 183 186 196 198 212 217 231 242 244 252 279 294 308 318 341 363 366 371 372 396 427 434 441 462 477 484 539 549 558 583 588 636 651 671 682 693 726 732 742 847 854 868 882 924 954 1023 1078 1089 1098 1113 1116 1166 1281 1302 1342 1364 1386 1452 1484 1519 1617 1643 1694 1708 1749 1764 1891 1908 1953 2013 2046 2156 2178 2196 2226 2332 2387 2541 2562 2597 2604 2684 2772 2989 3038 3069 3233 3234 3286 3339 3388 3498 3751 3782 3843 3906 4026 4081 4092 4356 4452 4557 4697 4774 4851 4929 5082 5124 5194 5247 5673 5929 5978 6039 6076 6138 6413 6466 6468 6572 6678 6996 7161 7381 7502 7564 7623 7686 7791 7812 8052 8162 8967 9114 9394 9548 9699 9702 9858 10164 10388 10494 11253 11346 11501 11858 11956 12078 12243 12276 12826 12932 13237 13356 13671 14091 14322 14762 14787 15004 15246 15372 15582 16324 16709 17019 17787 17934 18073 18228 18788 19239 19398 19404 19716 20801 20988 21483 22143 22506 22631 22692 23002 23373 23716 24156 24486 25652 26257 26474 26901 27342 28182 28567 28644 29097 29524 29574 30492 31164 32879 33418 33759 34038 34503 35563 35574 35868 36146 36729 38478 38796 39711 41602 42273 42966 44286 44891 45012 45262 46004 46746 48972 50127 51667 52514 52948 53361 53802 54219 54684 56364 57134 57717 58194 59148 62403 65758 66429 66836 67518 67893 68076 69006 71126 71148 72292 73458 76956 78771 79422 80507 83204 84546 85701 85932 88572 89782 90524 92659 93492 98637 100223 100254 103334 103509 105028 106689 106722 107604 108438 114268 115434 116388 119133 124806 126511 131516 132858 134673 135036 135786 138012 142252 145607 146916 150381 155001 157542 158417 158844 161014 162657 169092 171402 179564 183799 185318 187209 197274 198803 200446 200508 203679 206668 207018 213378 213444 216876 228811 230868 236313 238266 241521 248941 249612 253022 257103 265716 269346 271572 277977 291214 295911 300669 300762 310002 314237 315084 316834 320067 322028 325314 342804 361669 367598 370636 374418 379533 391193 394548 397606 400892 404019 407358 414036 426756 436821 457622 465003 472626 475251 476532 483042 497882 506044 514206 538692 551397 555954 582428 591822 596409 601338 601524 620004 628474 633668 640134 650628 686433 701561 723338 724563 735196 746823 748836 759066 782386 795212 808038 814716 833931 873642 885577 902007 915244 930006 942711 945252 950502 966084 995764 1019249 1028412 1085007 1102453 1102794 1111908 1138599 1173579 1183644 1192818 1202676 1256948 1280268 1310463 1372866 1391621 1403122 1425753 1446676 1449126 1493646 1518132 1564772 1601677 1616076 1654191 1667862 1742587 1747284 1771154 1789227 1804014 1860012 1885422 1901004 2038498 2059299 2104683 2170014 2204906 2205588 2240469 2277198 2347158 2385636 2620926 2656731 2738351 2745732 2783242 2806244 2828133 2851506 2898252 2987292 3057747 3203354 3255021 3307359 3308382 3335724 3485174 3520737 3542308 3578454 3608028 3770844 4076996 4118598 4174863 4209366 4340028 4409812 4480938 4554396 4694316 4805031 4910927 5227761 5241852 5313462 5476702 5566484 5656266 5703012 6115494 6314049 6406708 6510042 6614718 6616764 6970348 7041474 7156908 7717171 7970193 8215053 8237196 8349726 8418732 8961876 9173241 9610062 9741347 9821854 9922077 10455522 10626924 10953404 11211739 11312532 12126983 12230988 12524589 12628098 13020084 13229436 14082948 14415093 14732781 15434342 15683283 15940386 16430106 16699452 18346482 19168457 19220124 19482694 19643708 19844154 20911044 22423478 23151513 24253966 24645159 25049178 25256196 28830186 29224041 29465562 30868684 31366566 31880772 32860212 33635217 36380949 36692964 38336914 38965388 39688308 44198343 44846956 46303026 48507932 49290318 50098356 54020197 57505371 57660372 58448082 58931124 62733132 67270434 69454539 72761898 76673828 84888881 87672123 88396686 92606052 98580636 100905651 108040394 109142847 115010742 116896164 134540868 138909078 145523796 162060591 169777762 172516113 175344246 176793372 201811302 216080788 218285694 230021484 254666643 277818156 324121182 339555524 345032226 350688492 403622604 436571388 486181773 509333286 594222167 648242364 690064452 763999929 972363546 1018666572 1188444334 1527999858 1782666501 1944727092 2376888668 3055999716 3565333002 5347999503 7130666004 10695999006 21391998012
- Sum of all divisors σ(n): 73910019456
- Sum of proper divisors (its aliquot sum) s(n): 52518021444
- 21391998012 is an abundant number, because the sum of its proper divisors (52518021444) is greater than itself. Its abundance is 31126023432
Bases of 21391998012
- Binary: 100111110110000111111111100001111002
- Hexadecimal: 0x4FB0FFC3C
- Base-36: 9TS8RB0
Squares and roots of 21391998012
- 21391998012 squared (213919980122) is 457617578945411952144
- 21391998012 cubed (213919980123) is 9789354339056505536785487137728
-
The
square root of 21391998012 is 146260.0355941433 -
The
cube root of 21391998012 is 2775.9850091723
Scales and comparisons
How big is 21391998012?- 21,391,998,012 seconds is equal to 680 years, 10 weeks, 2 days, 13 hours, 40 minutes, 12 seconds.
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To count from 1 to 21,391,998,012 would take you about one thousand, three hundred sixty 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 21391998012 cubic inches would be around 231.3 feet tall.
Recreational maths with 21391998012
- 21391998012 backwards is 21089919312
- The number of decimal digits it has is: 11
- The sum of 21391998012's digits is 45
- More coming soon!
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The information we have on file for 21391998012 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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