21187442187268

Names of 21187442187268

• Cardinal: 21187442187268 can be written as Twenty-one trillion, one hundred eighty-seven billion, four hundred forty-two million, one hundred eighty-seven thousand, two hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1187442187268 × 10¹³

Factors of 21187442187268

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 376

Divisors of 21187442187268

• Number of divisors d(n): 270
• Complete list of divisors:
  1 2 4 7 14 19 28 38 49 76 97 98 133 194 196 251 266 343 361 388 502 532 679 686 722 931 1004 1358 1372 1444 1757 1843 1862 2401 2527 2716 3514 3686 3724 4753 4769 4802 5054 6517 7028 7372 9506 9538 9604 10108 12299 12901 13034 17689 19012 19076 24347 24598 25802 26068 33271 33383 35017 35378 45619 48694 49196 51604 63001 66542 66766 70034 70756 86093 90307 90611 91238 97388 123823 126002 133084 133532 140068 170429 172186 180614 181222 182476 232897 233681 245119 247646 252004 340858 344372 361228 362444 441007 462593 465794 467362 490238 495292 602651 632149 634277 681716 866761 882014 925186 931588 934724 980476 1193003 1197019 1205302 1264298 1268554 1635767 1715833 1733522 1764028 1850372 2386006 2394038 2410604 2528596 2537108 3087049 3238151 3271534 3431666 3467044 4425043 4439939 4772012 4788076 6111097 6174098 6476302 6543068 6863332 8351021 8379133 8789267 8850086 8879878 11450369 12010831 12222194 12348196 12952604 16702042 16758266 17578534 17700172 17759756 21609343 22667057 22743361 22900738 24021662 24444388 31079573 33404084 33516532 35157068 42777679 43218686 45334114 45486722 45801476 48043324 58457147 58653931 61524869 62159146 84075817 85555358 86437372 90668228 90973444 116110843 116914294 117307862 123049738 124318292 151265401 158669399 159203527 168151634 171110716 217557011 232221686 233828588 234615724 246099476 299443753 302530802 317338798 318407054 336303268 410577517 430674083 435114022 464443372 598887506 605061604 634677596 636814108 812775901 821155034 861348166 870228044 1110685793 1114424689 1197775012 1625551802 1642310068 1722696332 2096106271 2206106017 2221371586 2228849378 2874042619 3014718581 3251103604 4192212542 4412212034 4442743172 4457698756 5689431307 5748085238 6029437162 7800972823 8384425084 8824424068 11378862614 11496170476 12058874324 14672743897 15442742119 15601945646 21103030067 22757725228 29345487794 30885484238 31203891292 39826019149 42206060134 54606809761 58690975588 61770968476 79652038298 84412120268 108099194833 109213619522 159304076596 216198389666 218427239044 278782134043 432396779332 557564268086 756694363831 1115128536172 1513388727662 3026777455324 5296860546817 10593721093634 21187442187268
• Sum of all divisors σ(n): 46306646257998
• Sum of proper divisors (its aliquot sum) s(n): 25119204070730
• 21187442187268 is an abundant number, because the sum of its proper divisors (25119204070730) is greater than itself. Its abundance is 3931761883462

Bases of 21187442187268

• Binary: 100110100010100010101111101110001110000000100₂
• Hexadecimal: 0x134515F71C04
• Base-36: 7IDDK191G

Squares and roots of 21187442187268

• 21187442187268 squared (21187442187268²) is 448907706438823811981303824
• 21187442187268 cubed (21187442187268³) is 9511206077591654433958437477493012512832
• The square root of 21187442187268 is 4602981.8799630309
• The cube root of 21187442187268 is 27671.0842618743

Scales and comparisons

• 21,187,442,187,268 seconds is equal to 673,695 years, 6 weeks, 3 days, 7 hours, 34 minutes, 28 seconds.
• To count from 1 to 21,187,442,187,268 would take you about one million, six hundred eighty-four thousand, two 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 21187442187268 cubic inches would be around 2305.9 feet tall.

Recreational maths with 21187442187268

• 21187442187268 backwards is 86278124478112
• The number of decimal digits it has is: 14
• The sum of 21187442187268's digits is 61
• More coming soon!