21240894966400

Names of 21240894966400

• Cardinal: 21240894966400 can be written as Twenty-one trillion, two hundred forty billion, eight hundred ninety-four million, nine hundred sixty-six thousand, four hundred.

Scientific notation

• Scientific notation: 2.12408949664 × 10¹³

Factors of 21240894966400

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 6637779684

Divisors of 21240894966400

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 320 400 640 800 1600 3200 6637779677 13275559354 26551118708 33188898385 53102237416 66377796770 106204474832 132755593540 165944491925 212408949664 265511187080 331888983850 424817899328 531022374160 663777967700 849635798656 1062044748320 1327555935400 2124089496640 2655111870800 4248178993280 5310223741600 10620447483200 21240894966400
• Sum of all divisors σ(n): 52471648354590
• Sum of proper divisors (its aliquot sum) s(n): 31230753388190
• 21240894966400 is an abundant number, because the sum of its proper divisors (31230753388190) is greater than itself. Its abundance is 9989858421790

Bases of 21240894966400

• Binary: 100110101000110000111111111111100101010000000₂
• Hexadecimal: 0x135187FFCA80
• Base-36: 7J1XKFTDS

Squares and roots of 21240894966400

• 21240894966400 squared (21240894966400²) is 451175618973636857128960000
• 21240894966400 cubed (21240894966400³) is 9583373934019527452892042419666944000000
• The square root of 21240894966400 is 4608784.5432825345
• The cube root of 21240894966400 is 27694.3347363099

Scales and comparisons

• 21,240,894,966,400 seconds is equal to 675,394 years, 39 weeks, 2 days, 17 hours, 46 minutes, 40 seconds.
• To count from 1 to 21,240,894,966,400 would take you about one million, six hundred eighty-eight thousand, four hundred eighty-six 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 21240894966400 cubic inches would be around 2307.9 feet tall.

Recreational maths with 21240894966400

• 21240894966400 backwards is 00466949804212
• The number of decimal digits it has is: 14
• The sum of 21240894966400's digits is 55
• More coming soon!