21503949012

Names of 21503949012

• Cardinal: 21503949012 can be written as Twenty-one billion, five hundred three million, nine hundred forty-nine thousand and twelve.

Scientific notation

• Scientific notation: 2.1503949012 × 10¹⁰

Factors of 21503949012

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 298

Divisors of 21503949012

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 18 21 26 27 28 36 39 42 52 54 63 73 78 81 84 91 97 103 108 117 126 146 156 162 182 189 194 206 219 234 252 273 291 292 309 324 351 364 378 388 412 438 468 511 546 567 582 618 657 679 702 721 756 819 873 876 927 949 1022 1053 1092 1134 1164 1236 1261 1314 1339 1358 1404 1442 1533 1638 1746 1854 1898 1971 2037 2044 2106 2163 2268 2457 2522 2619 2628 2678 2716 2781 2847 2884 3066 3276 3492 3708 3783 3796 3942 4017 4074 4212 4326 4599 4914 5044 5238 5356 5562 5694 5913 6111 6132 6489 6643 7081 7371 7519 7566 7857 7884 8034 8148 8343 8541 8652 8827 9198 9373 9828 9991 10476 11124 11349 11388 11826 12051 12222 12978 13286 13797 14162 14742 15038 15132 15714 16068 16686 17082 17654 18333 18396 18746 19467 19929 19982 21243 22557 22698 23652 24102 24444 25623 25956 26481 26572 27594 28119 28324 29484 29973 30076 31428 33372 34047 34164 35308 36153 36666 37492 38934 39858 39964 41391 42486 45114 45396 48204 49567 51246 52633 52962 54999 55188 56238 58401 59787 59946 63729 67671 68094 69937 72306 73332 76869 77868 79443 79716 82782 84357 84972 89919 90228 92053 97747 99134 102141 102492 105266 105924 108459 109998 112476 116802 119574 119892 127458 129883 135342 136188 139874 144612 148701 153738 157899 158886 165564 168714 179361 179838 184106 191187 195494 198268 203013 204282 209811 210532 216918 219996 233604 238329 239148 253071 254916 259766 269757 270684 276159 279748 293241 297402 307476 315798 317772 337428 358722 359676 368212 382374 389649 390988 406026 408564 419622 433836 446103 473697 476658 506142 519532 538083 539514 552318 573561 586482 594804 609039 629433 631596 644371 684229 714987 717444 729343 759213 764748 779298 809271 812052 828477 839244 879723 892206 909181 947394 953316 1012284 1076166 1079028 1104636 1147122 1168947 1172964 1218078 1258866 1288742 1338309 1368458 1421091 1429974 1458686 1518426 1558596 1618542 1656954 1759446 1784412 1818362 1888299 1894788 1933113 2052687 2152332 2188029 2294244 2337894 2436156 2485431 2517732 2577484 2639169 2676618 2727543 2736916 2842182 2859948 2917372 3036852 3237084 3313908 3506841 3518892 3636724 3776598 3866226 4014927 4105374 4263273 4376058 4675788 4970862 5105401 5278338 5353236 5455086 5664897 5684364 5799339 6158061 6564087 7013682 7456293 7553196 7732452 7917507 8029854 8182629 8210748 8526546 8752116 9481459 9941724 10210802 10520523 10556676 10910172 11329794 11598678 12316122 13128174 14027364 14912586 15316203 15835014 16059708 16365258 17053092 17398017 18474183 18962918 19692261 20421604 21041046 22659588 23197356 24547887 24632244 26256348 28444377 29825172 30632406 31670028 32730516 34796034 36948366 37925836 39384522 42082092 45948609 49095774 52194051 55422549 56888754 59076783 61264812 66370213 69592068 73643661 73896732 78769044 85333131 91897218 98191548 104388102 110845098 113777508 118153566 132740426 137845827 147287322 170666262 183794436 199110639 208776204 221690196 236307132 255999393 265480852 275691654 294574644 341332524 398221278 413537481 511998786 551383308 597331917 767998179 796442556 827074962 1023997572 1194663834 1535996358 1654149924 1791995751 2389327668 3071992716 3583991502 5375987253 7167983004 10751974506 21503949012
• Sum of all divisors σ(n): 71547187712
• Sum of proper divisors (its aliquot sum) s(n): 50043238700
• 21503949012 is an abundant number, because the sum of its proper divisors (50043238700) is greater than itself. Its abundance is 28539289688

Bases of 21503949012

• Binary: 10100000001101111000011100011010100₂
• Hexadecimal: 0x501BC38D4
• Base-36: 9VMW990

Squares and roots of 21503949012

• 21503949012 squared (21503949012²) is 462419823110695776144
• 21503949012 cubed (21503949012³) is 9943852298310461202044341969728
• The square root of 21503949012 is 146642.2483870183
• The cube root of 21503949012 is 2780.8191180447

Scales and comparisons

• 21,503,949,012 seconds is equal to 683 years, 39 weeks, 3 days, 7 hours, 10 minutes, 12 seconds.
• To count from 1 to 21,503,949,012 would take you about one thousand, three hundred sixty-seven 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 21503949012 cubic inches would be around 231.7 feet tall.

Recreational maths with 21503949012

• 21503949012 backwards is 21094930512
• 21503949012 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21503949012's digits is 36
• More coming soon!