21498

Names of 21498

• Cardinal: 21498 can be written as Twenty-one thousand, four hundred ninety-eight.

Scientific notation

• Scientific notation: 2.1498 × 10⁴

Factors of 21498

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 3588

Divisors of 21498

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 3 6 3583 7166 10749 21498
• Sum of all divisors σ(n): 43008
• Sum of proper divisors (its aliquot sum) s(n): 21510
• 21498 is an abundant number, because the sum of its proper divisors (21510) is greater than itself. Its abundance is 12

Bases of 21498

• Binary: 101001111111010₂
• Hexadecimal: 0x53FA
• Base-36: GL6

Squares and roots of 21498

• 21498 squared (21498²) is 462164004
• 21498 cubed (21498³) is 9935601757992
• The square root of 21498 is 146.6219628841
• The cube root of 21498 is 27.8056265891

Scales and comparisons

• 21,498 seconds is equal to 5 hours, 58 minutes, 18 seconds.
• To count from 1 to 21,498 would take you about five hours.

  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 21498 cubic inches would be around 2.3 feet tall.

Recreational maths with 21498

• 21498 backwards is 89412
• The number of decimal digits it has is: 5
• The sum of 21498's digits is 24
• More coming soon!