21242388000

Names of 21242388000

• Cardinal: 21242388000 can be written as Twenty-one billion, two hundred forty-two million, three hundred eighty-eight thousand.

Scientific notation

• Scientific notation: 2.1242388 × 10¹⁰

Factors of 21242388000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1770209

Divisors of 21242388000

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 75 80 96 100 120 125 150 160 200 240 250 300 375 400 480 500 600 750 800 1000 1200 1500 2000 2400 3000 4000 6000 12000 1770199 3540398 5310597 7080796 8850995 10621194 14161592 17701990 21242388 26552985 28323184 35403980 42484776 44254975 53105970 56646368 70807960 84969552 88509950 106211940 132764925 141615920 169939104 177019900 212423880 221274875 265529850 283231840 354039800 424847760 442549750 531059700 663824625 708079600 849695520 885099500 1062119400 1327649250 1416159200 1770199000 2124238800 2655298500 3540398000 4248477600 5310597000 7080796000 10621194000 21242388000
• Sum of all divisors σ(n): 69590102400
• Sum of proper divisors (its aliquot sum) s(n): 48347714400
• 21242388000 is an abundant number, because the sum of its proper divisors (48347714400) is greater than itself. Its abundance is 27105326400

Bases of 21242388000

• Binary: 10011110010001001010001111000100000₂
• Hexadecimal: 0x4F2251E20
• Base-36: 9RB63HC

Squares and roots of 21242388000

• 21242388000 squared (21242388000²) is 451239047942544000000
• 21242388000 cubed (21242388000³) is 9585394937146121355072000000000
• The square root of 21242388000 is 145747.6860879787
• The cube root of 21242388000 is 2769.4983604191

Scales and comparisons

• 21,242,388,000 seconds is equal to 675 years, 22 weeks, 6 days, 23 hours, 20 minutes.
• To count from 1 to 21,242,388,000 would take you about one thousand, three hundred fifty 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 21242388000 cubic inches would be around 230.8 feet tall.

Recreational maths with 21242388000

• 21242388000 backwards is 00088324212
• 21242388000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21242388000's digits is 30
• More coming soon!