21018863006757

Names of 21018863006757

• Cardinal: 21018863006757 can be written as Twenty-one trillion, eighteen billion, eight hundred sixty-three million, six thousand, seven hundred fifty-seven.

Scientific notation

• Scientific notation: 2.1018863006757 × 10¹³

Factors of 21018863006757

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 13219

Divisors of 21018863006757

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 7 9 11 21 33 37 43 49 63 77 99 111 129 147 211 231 259 301 333 387 407 441 473 539 633 693 777 903 1221 1419 1477 1591 1617 1813 1899 2107 2321 2331 2709 2849 3311 3663 4257 4431 4773 4851 5439 6321 6963 7807 8547 9073 9933 10339 11137 12907 13293 14319 16247 16317 17501 18963 19943 20889 23177 23421 25641 27219 29799 31017 33411 38721 48741 52503 54649 59829 63511 69531 70263 77959 81657 85877 90349 93051 99803 100233 113729 116163 122507 141977 146223 157509 163947 179487 190533 208593 233877 257631 271047 299409 335701 341187 367521 382543 425931 444577 477559 491841 555001 571599 601139 632443 698621 701631 772893 813141 857549 898227 993839 1007103 1023561 1102563 1147629 1277793 1333731 1432677 1665003 1803417 1897329 2095863 2349907 2572647 2723377 2981517 3021309 3342913 3442887 3692711 3885007 4001193 4207973 4298031 4890347 4995009 5253149 5410251 5691987 6105011 6287589 6956873 7049721 7717941 8170131 8944551 10028739 11078133 11655021 12623919 14671041 15759447 16449349 18315033 19063639 20535037 20870619 21149163 23400391 24510393 25848977 27195049 29957147 30086217 33234399 34965063 36772043 37871757 42735077 44013123 47278341 49348047 54945099 57190917 61605111 62611857 70201173 77546931 81585147 89871441 100764949 110316129 117105211 128205231 133445473 143745259 148044141 171572751 180942839 184815333 209700029 210603519 225885407 232640793 244755441 257404301 269614323 299145539 302294847 330948387 351315633 384615693 400336419 431235777 542828517 629100087 677656221 705354643 772212903 819736477 897436617 906884541 1006216813 1053946899 1108414439 1201009257 1288157321 1293707331 1467900203 1581197849 1628485551 1887300261 2032968663 2116063929 2316638709 2459209431 2692309851 3018650439 3325243317 3864471963 4332892807 4403700609 4743593547 4937482501 5738155339 6348191787 7377628293 7758901073 9017101247 9055951317 9975729951 11068384943 11593415889 12998678421 13211101827 14230780641 14812447503 17214466017 23276703219 27051303741 30330249649 33205154829 38996035263 44437342509 47661820877 51643398051 54312307511 63119708729 69830109657 81153911223 90990748947 99615464487 142985462631 162936922533 189359126187 212311747543 272972246841 333632746139 428956387893 488810767599 568077378561 636935242629 1000898238417 1910805727887 2335429222973 3002694715251 7006287668919 21018863006757
• Sum of all divisors σ(n): 40684646306304
• Sum of proper divisors (its aliquot sum) s(n): 19665783299547
• 21018863006757 is a deficient number, because the sum of its proper divisors (19665783299547) is less than itself. Its deficiency is 1353079707210

Bases of 21018863006757

• Binary: 100110001110111010101110111001111010000100101₂
• Hexadecimal: 0x131DD5DCF425
• Base-36: 7G7XKCCV9

Squares and roots of 21018863006757

• 21018863006757 squared (21018863006757²) is 441792602096817914627657049
• 21018863006757 cubed (21018863006757³) is 9285978180871721095872618173054365680093
• The square root of 21018863006757 is 4584633.3557610689
• The cube root of 21018863006757 is 27597.4998640065

Scales and comparisons

• 21,018,863,006,757 seconds is equal to 668,334 years, 43 weeks, 9 hours, 25 minutes, 57 seconds.
• To count from 1 to 21,018,863,006,757 would take you about one million, six hundred seventy thousand, eight hundred thirty-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 21018863006757 cubic inches would be around 2299.8 feet tall.

Recreational maths with 21018863006757

• 21018863006757 backwards is 75760036881012
• The number of decimal digits it has is: 14
• The sum of 21018863006757's digits is 54
• More coming soon!