21245848400

Names of 21245848400

• Cardinal: 21245848400 can be written as Twenty-one billion, two hundred forty-five million, eight hundred forty-eight thousand, four hundred.

Scientific notation

• Scientific notation: 2.12458484 × 10¹⁰

Factors of 21245848400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 7587817

Divisors of 21245848400

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 25 28 35 40 50 56 70 80 100 112 140 175 200 280 350 400 560 700 1400 2800 7587803 15175606 30351212 37939015 53114621 60702424 75878030 106229242 121404848 151756060 189695075 212458484 265573105 303512120 379390150 424916968 531146210 607024240 758780300 849833936 1062292420 1327865525 1517560600 2124584840 2655731050 3035121200 4249169680 5311462100 10622924200 21245848400
• Sum of all divisors σ(n): 58335037152
• Sum of proper divisors (its aliquot sum) s(n): 37089188752
• 21245848400 is an abundant number, because the sum of its proper divisors (37089188752) is greater than itself. Its abundance is 15843340352

Bases of 21245848400

• Binary: 10011110010010110011110101101010000₂
• Hexadecimal: 0x4F259EB50
• Base-36: 9RD89JK

Squares and roots of 21245848400

• 21245848400 squared (21245848400²) is 451386074235782560000
• 21245848400 cubed (21245848400³) is 9590080103084582125123904000000
• The square root of 21245848400 is 145759.5568050343
• The cube root of 21245848400 is 2769.6487366665

Scales and comparisons

• 21,245,848,400 seconds is equal to 675 years, 28 weeks, 5 days, 33 minutes, 20 seconds.
• To count from 1 to 21,245,848,400 would take you about one thousand, three hundred fifty-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 21245848400 cubic inches would be around 230.8 feet tall.

Recreational maths with 21245848400

• 21245848400 backwards is 00484854212
• The number of decimal digits it has is: 11
• The sum of 21245848400's digits is 38
• More coming soon!