21368592400

Names of 21368592400

• Cardinal: 21368592400 can be written as Twenty-one billion, three hundred sixty-eight million, five hundred ninety-two thousand, four hundred.

Scientific notation

• Scientific notation: 2.13685924 × 10¹⁰

Factors of 21368592400

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 7316

Divisors of 21368592400

• Number of divisors d(n): 45
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 7309 14618 29236 36545 58472 73090 116944 146180 182725 292360 365450 584720 730900 1461800 2923600 53421481 106842962 213685924 267107405 427371848 534214810 854743696 1068429620 1335537025 2136859240 2671074050 4273718480 5342148100 10684296200 21368592400
• Sum of all divisors σ(n): 51345068151
• Sum of proper divisors (its aliquot sum) s(n): 29976475751
• 21368592400 is an abundant number, because the sum of its proper divisors (29976475751) is greater than itself. Its abundance is 8607883351

Bases of 21368592400

• Binary: 10011111001101010101101100000010000₂
• Hexadecimal: 0x4F9AAD810
• Base-36: 9TEB3F4

Squares and roots of 21368592400

• 21368592400 squared (21368592400²) is 456616741157337760000
• 21368592400 cubed (21368592400³) is 9757257024807454862569024000000
• 21368592400 is a perfect square number. Its square root is 146180
• The cube root of 21368592400 is 2774.9722108517

Scales and comparisons

• 21,368,592,400 seconds is equal to 679 years, 23 weeks, 4 days, 16 hours, 6 minutes, 40 seconds.
• To count from 1 to 21,368,592,400 would take you about one thousand, three hundred fifty-eight 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 21368592400 cubic inches would be around 231.2 feet tall.

Recreational maths with 21368592400

• 21368592400 backwards is 00429586312
• 21368592400 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21368592400's digits is 40
• More coming soon!