21342288100

Names of 21342288100

• Cardinal: 21342288100 can be written as Twenty-one billion, three hundred forty-two million, two hundred eighty-eight thousand, one hundred.

Scientific notation

• Scientific notation: 2.13422881 × 10¹⁰

Factors of 21342288100

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2101

Divisors of 21342288100

• Number of divisors d(n): 81
• Complete list of divisors:
  1 2 4 5 7 10 14 20 25 28 35 49 50 70 98 100 140 175 196 245 350 490 700 980 1225 2087 2450 4174 4900 8348 10435 14609 20870 29218 41740 52175 58436 73045 102263 104350 146090 204526 208700 292180 365225 409052 511315 730450 1022630 1460900 2045260 2556575 4355569 5113150 8711138 10226300 17422276 21777845 30488983 43555690 60977966 87111380 108889225 121955932 152444915 213422881 217778450 304889830 426845762 435556900 609779660 762224575 853691524 1067114405 1524449150 2134228810 3048898300 4268457620 5335572025 10671144050 21342288100
• Sum of all divisors σ(n): 53899859433
• Sum of proper divisors (its aliquot sum) s(n): 32557571333
• 21342288100 is an abundant number, because the sum of its proper divisors (32557571333) is greater than itself. Its abundance is 11215283233

Bases of 21342288100

• Binary: 10011111000000110010111100011100100₂
• Hexadecimal: 0x4F81978E4
• Base-36: 9SYNAW4

Squares and roots of 21342288100

• 21342288100 squared (21342288100²) is 455493261343401610000
• 21342288100 cubed (21342288100³) is 9721268411199470194623841000000
• 21342288100 is a perfect square number. Its square root is 146090
• The cube root of 21342288100 is 2773.8330986457

Scales and comparisons

• 21,342,288,100 seconds is equal to 678 years, 32 weeks, 1 day, 5 hours, 21 minutes, 40 seconds.
• To count from 1 to 21,342,288,100 would take you about one thousand, three hundred fifty-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 21342288100 cubic inches would be around 231.2 feet tall.

Recreational maths with 21342288100

• 21342288100 backwards is 00188224312
• The number of decimal digits it has is: 11
• The sum of 21342288100's digits is 31
• More coming soon!