21983397

Names of 21983397

• Cardinal: 21983397 can be written as Twenty-one million, nine hundred eighty-three thousand, three hundred ninety-seven.

Scientific notation

• Scientific notation: 2.1983397 × 10⁷

Factors of 21983397

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 431067

Divisors of 21983397

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 17 51 431047 1293141 7327799 21983397
• Sum of all divisors σ(n): 31035456
• Sum of proper divisors (its aliquot sum) s(n): 9052059
• 21983397 is a deficient number, because the sum of its proper divisors (9052059) is less than itself. Its deficiency is 12931338

Bases of 21983397

• Binary: 1010011110111000010100101₂
• Hexadecimal: 0x14F70A5
• Base-36: D36HX

Squares and roots of 21983397

• 21983397 squared (21983397²) is 483269743659609
• 21983397 cubed (21983397³) is 10623910632957417511773
• The square root of 21983397 is 4688.6455400255
• The cube root of 21983397 is 280.1334270549

Scales and comparisons

• 21,983,397 seconds is equal to 36 weeks, 2 days, 10 hours, 29 minutes, 57 seconds.
• To count from 1 to 21,983,397 would take you about two weeks!

  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 21983397 cubic inches would be around 23.3 feet tall.

Recreational maths with 21983397

• 21983397 backwards is 79338912
• The number of decimal digits it has is: 8
• The sum of 21983397's digits is 42
• More coming soon!