213666828921

Names of 213666828921

• Cardinal: 213666828921 can be written as Two hundred thirteen billion, six hundred sixty-six million, eight hundred twenty-eight thousand, nine hundred twenty-one.

Scientific notation

• Scientific notation: 2.13666828921 × 10¹¹

Factors of 213666828921

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1592

Divisors of 213666828921

• Number of divisors d(n): 216
• Complete list of divisors:
  1 3 7 9 13 21 23 39 47 49 63 69 91 117 141 147 161 207 273 299 329 423 441 483 529 611 637 819 897 987 1081 1127 1449 1499 1587 1833 1911 2093 2303 2691 2961 3243 3381 3703 4277 4497 4761 5499 5733 6279 6877 6909 7567 9729 10143 10493 11109 12831 13491 14053 14651 18837 19487 20631 20727 22701 24863 25921 29939 31479 33327 34477 38493 42159 43953 48139 52969 58461 61893 68103 70453 73451 74589 77763 89817 94437 98371 103431 126477 131859 136409 144417 158907 174041 175383 211359 220353 223767 233289 241339 269451 295113 310293 323219 336973 409227 433251 448201 476721 493171 522123 634077 661059 688597 724017 792971 885339 915889 954863 969657 1010919 1218287 1227681 1344603 1479513 1566369 1620419 1689373 2065791 2172051 2262533 2378913 2747667 2864589 2908971 3032757 3137407 3452197 3654861 4033809 4438539 4861257 5068119 5550797 6197373 6411223 6787599 7136739 8243001 8593767 9412221 10308623 10356591 10964583 11342933 14583771 15204357 15837731 16652391 19233669 20362797 21065447 21961849 28236663 30925869 31069773 34028799 37269637 38855579 44878561 47513193 49957173 57701007 63196341 65885547 72160361 79400531 92777607 102086397 111808911 116566737 134635683 142539579 147458129 189589023 197656641 216481083 238201593 260887459 335426733 349700211 403907049 442374387 484505281 505122527 649443249 714604779 782662377 1032206903 1327123161 1453515843 1515367581 1826212213 2347987131 3096620709 3391536967 4360547529 4546102743 5478636639 9289862127 10174610901 16435909917 23740758769 30523832703 71222276307 213666828921
• Sum of all divisors σ(n): 413051184000
• Sum of proper divisors (its aliquot sum) s(n): 199384355079
• 213666828921 is a deficient number, because the sum of its proper divisors (199384355079) is less than itself. Its deficiency is 14282473842

Bases of 213666828921

• Binary: 11000110111111100010010001001001111001₂
• Hexadecimal: 0x31BF891279
• Base-36: 2Q5NPOC9

Squares and roots of 213666828921

• 213666828921 squared (213666828921²) is 45653513781155882024241
• 213666828921 cubed (213666828921³) is 9754641518720749678106360921873961
• The square root of 213666828921 is 462241.0939336743
• The cube root of 213666828921 is 5978.3183091719

Scales and comparisons

• 213,666,828,921 seconds is equal to 6,793 years, 49 weeks, 16 hours, 55 minutes, 21 seconds.
• To count from 1 to 213,666,828,921 would take you about thirteen thousand, five hundred eighty-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 213666828921 cubic inches would be around 498.2 feet tall.

Recreational maths with 213666828921

• 213666828921 backwards is 129828666312
• The number of decimal digits it has is: 12
• The sum of 213666828921's digits is 54
• More coming soon!