21356656412

Names of 21356656412

• Cardinal: 21356656412 can be written as Twenty-one billion, three hundred fifty-six million, six hundred fifty-six thousand, four hundred twelve.

Scientific notation

• Scientific notation: 2.1356656412 × 10¹⁰

Factors of 21356656412

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 8261

Divisors of 21356656412

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 7 13 14 19 26 28 29 38 52 58 76 91 116 133 169 182 203 247 266 338 364 377 406 494 532 551 676 754 812 988 1102 1183 1508 1729 2204 2366 2639 3211 3458 3857 4732 4901 5278 6422 6916 7163 7714 8191 9802 10556 12844 14326 15428 16382 19604 22477 28652 32764 34307 44954 50141 57337 68614 89908 93119 100282 106483 114674 137228 155629 186238 200564 212966 229348 237539 311258 372476 425932 475078 622516 651833 745381 950156 1089403 1303666 1384279 1490762 1662773 2023177 2178806 2607332 2768558 2981524 3088007 3325546 4046354 4357612 4513241 5537116 6176014 6651092 8092708 9026482 9689953 12352028 14162239 18052964 19379906 21616049 26301301 28324478 31592687 38759812 40144091 43232098 52602602 56648956 58672133 63185374 80288182 86464196 105205204 117344266 126370748 160576364 184109107 234688532 281008637 368218214 410704931 562017274 736436428 762737729 821409862 1124034548 1525475458 1642819724 3050950916 5339164103 10678328206 21356656412
• Sum of all divisors σ(n): 50370969600
• Sum of proper divisors (its aliquot sum) s(n): 29014313188
• 21356656412 is an abundant number, because the sum of its proper divisors (29014313188) is greater than itself. Its abundance is 7657656776

Bases of 21356656412

• Binary: 10011111000111101001011011100011100₂
• Hexadecimal: 0x4F8F4B71C
• Base-36: 9T779JW

Squares and roots of 21356656412

• 21356656412 squared (21356656412²) is 456106773100220713744
• 21356656412 cubed (21356656412³) is 9740915640287457824796014126528
• The square root of 21356656412 is 146139.1679598595
• The cube root of 21356656412 is 2774.4554367725

Scales and comparisons

• 21,356,656,412 seconds is equal to 679 years, 3 weeks, 6 days, 12 hours, 33 minutes, 32 seconds.
• To count from 1 to 21,356,656,412 would take you about one thousand, three hundred fifty-eight 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 21356656412 cubic inches would be around 231.2 feet tall.

Recreational maths with 21356656412

• 21356656412 backwards is 21465665312
• The number of decimal digits it has is: 11
• The sum of 21356656412's digits is 41
• More coming soon!