21318856427511

Names of 21318856427511

• Cardinal: 21318856427511 can be written as Twenty-one trillion, three hundred eighteen billion, eight hundred fifty-six million, four hundred twenty-seven thousand, five hundred eleven.

Scientific notation

• Scientific notation: 2.1318856427511 × 10¹³

Factors of 21318856427511

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1809515

Divisors of 21318856427511

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 9 27 29 87 101 149 261 303 447 783 909 1341 2727 2929 4023 4321 8787 12963 15049 26361 38889 45147 79083 116667 135441 406323 436421 1309263 1809233 3927789 5427699 11783367 16283097 48849291 52467757 157403271 182732533 269575717 472209813 548197599 808727151 1416629439 1644592797 2426181453 4933778391 5299243457 7278544359 7817695793 15897730371 23453087379 27227147417 47693191113 70359262137 81681442251 143079573339 211077786411 245044326753 735132980259 789587275093 2368761825279 7106285475837 21318856427511
• Sum of all divisors σ(n): 33217536240000
• Sum of proper divisors (its aliquot sum) s(n): 11898679812489
• 21318856427511 is a deficient number, because the sum of its proper divisors (11898679812489) is less than itself. Its deficiency is 9420176615022

Bases of 21318856427511

• Binary: 100110110001110101110110111010100011111110111₂
• Hexadecimal: 0x1363AEDD47F7
• Base-36: 7K1QWOHRR

Squares and roots of 21318856427511

• 21318856427511 squared (21318856427511²) is 454493639376827077597655121
• 21318856427511 cubed (21318856427511³) is 9689284645091536467831956233112714433831
• The square root of 21318856427511 is 4617234.7165279567
• The cube root of 21318856427511 is 27728.1759757277

Scales and comparisons

• 21,318,856,427,511 seconds is equal to 677,873 years, 35 weeks, 6 days, 11 hours, 11 minutes, 51 seconds.
• To count from 1 to 21,318,856,427,511 would take you about one million, six hundred ninety-four thousand, six hundred eighty-four 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 21318856427511 cubic inches would be around 2310.7 feet tall.

Recreational maths with 21318856427511

• 21318856427511 backwards is 11572465881312
• The number of decimal digits it has is: 14
• The sum of 21318856427511's digits is 54
• More coming soon!