21384986421408

Names of 21384986421408

• Cardinal: 21384986421408 can be written as Twenty-one trillion, three hundred eighty-four billion, nine hundred eighty-six million, four hundred twenty-one thousand, four hundred eight.

Scientific notation

• Scientific notation: 2.1384986421408 × 10¹³

Factors of 21384986421408

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 26998238

Divisors of 21384986421408

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 37 48 74 96 111 148 222 223 296 444 446 592 669 888 892 1184 1338 1776 1784 2676 3552 3568 5352 7136 8251 10704 16502 21408 24753 33004 49506 66008 99012 132016 198024 264032 396048 792096 26997973 53995946 80993919 107991892 161987838 215983784 323975676 431967568 647951352 863935136 998925001 1295902704 1997850002 2591805408 2996775003 3995700004 5993550006 6020547979 7991400008 11987100012 12041095958 15982800016 18061643937 23974200024 24082191916 31965600032 36123287874 47948400048 48164383832 72246575748 95896800096 96328767664 144493151496 192657535328 222760275223 288986302992 445520550446 577972605984 668280825669 891041100892 1336561651338 1782082201784 2673123302676 3564164403568 5346246605352 7128328807136 10692493210704 21384986421408
• Sum of all divisors σ(n): 57911302181376
• Sum of proper divisors (its aliquot sum) s(n): 36526315759968
• 21384986421408 is an abundant number, because the sum of its proper divisors (36526315759968) is greater than itself. Its abundance is 15141329338560

Bases of 21384986421408

• Binary: 100110111001100010100100001001110100010100000₂
• Hexadecimal: 0x13731484E8A0
• Base-36: 7KW4KRRMO

Squares and roots of 21384986421408

• 21384986421408 squared (21384986421408²) is 457317644243804538160702464
• 21384986421408 cubed (21384986421408³) is 9779731612424054460796270760030807949312
• The square root of 21384986421408 is 4624390.3837595719
• The cube root of 21384986421408 is 27756.8168395519

Scales and comparisons

• 21,384,986,421,408 seconds is equal to 679,976 years, 21 weeks, 5 days, 21 hours, 56 minutes, 48 seconds.
• To count from 1 to 21,384,986,421,408 would take you about one million, six hundred ninety-nine thousand, nine hundred forty-one 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 21384986421408 cubic inches would be around 2313.1 feet tall.

Recreational maths with 21384986421408

• 21384986421408 backwards is 80412468948312
• The number of decimal digits it has is: 14
• The sum of 21384986421408's digits is 60
• More coming soon!