21348455

Names of 21348455

• Cardinal: 21348455 can be written as Twenty-one million, three hundred forty-eight thousand, four hundred fifty-five.

Scientific notation

• Scientific notation: 2.1348455 × 10⁷

Factors of 21348455

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 4269696

Divisors of 21348455

• Number of divisors d(n): 4
• Complete list of divisors:
  1 5 4269691 21348455
• Sum of all divisors σ(n): 25618152
• Sum of proper divisors (its aliquot sum) s(n): 4269697
• 21348455 is a deficient number, because the sum of its proper divisors (4269697) is less than itself. Its deficiency is 17078758

Bases of 21348455

• Binary: 1010001011100000001100111₂
• Hexadecimal: 0x145C067
• Base-36: CPKKN

Squares and roots of 21348455

• 21348455 squared (21348455²) is 455756530887025
• 21348455 cubed (21348455³) is 9729697790597763296375
• The square root of 21348455 is 4620.4388319725
• The cube root of 21348455 is 277.4100241261

Scales and comparisons

• 21,348,455 seconds is equal to 35 weeks, 2 days, 2 hours, 7 minutes, 35 seconds.
• To count from 1 to 21,348,455 would take you about six days!

  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 21348455 cubic inches would be around 23.1 feet tall.

Recreational maths with 21348455

• 21348455 backwards is 55484312
• The number of decimal digits it has is: 8
• The sum of 21348455's digits is 32
• More coming soon!