21432242568

Names of 21432242568

• Cardinal: 21432242568 can be written as Twenty-one billion, four hundred thirty-two million, two hundred forty-two thousand, five hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1432242568 × 10¹⁰

Factors of 21432242568

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 449

Divisors of 21432242568

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 433 866 1299 1732 2598 3464 4763 5196 9526 10392 14289 19052 28578 38104 57156 114312 187489 374978 562467 749956 1124934 1499912 2062379 2249868 4124758 4499736 6187137 8249516 12374274 16499032 24748548 49497096 81182737 162365474 243548211 324730948 487096422 649461896 893010107 974192844 1786020214 1948385688 2679030321 3572040428 5358060642 7144080856 10716121284 21432242568
• Sum of all divisors σ(n): 58586875200
• Sum of proper divisors (its aliquot sum) s(n): 37154632632
• 21432242568 is an abundant number, because the sum of its proper divisors (37154632632) is greater than itself. Its abundance is 15722390064

Bases of 21432242568

• Binary: 10011111101011101100001000110001000₂
• Hexadecimal: 0x4FD761188
• Base-36: 9UG7C7C

Squares and roots of 21432242568

• 21432242568 squared (21432242568²) is 459341021493591234624
• 21432242568 cubed (21432242568³) is 9844708194083548997900168274432
• The square root of 21432242568 is 146397.5497335935
• The cube root of 21432242568 is 2777.7247297765

Scales and comparisons

• 21,432,242,568 seconds is equal to 681 years, 24 weeks, 6 days, 8 hours, 42 minutes, 48 seconds.
• To count from 1 to 21,432,242,568 would take you about one thousand, three hundred sixty-two 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 21432242568 cubic inches would be around 231.5 feet tall.

Recreational maths with 21432242568

• 21432242568 backwards is 86524223412
• The number of decimal digits it has is: 11
• The sum of 21432242568's digits is 39
• More coming soon!