15998

Names of 15998

• Cardinal: 15998 can be written as Fifteen thousand, nine hundred ninety-eight.

Scientific notation

• Scientific notation: 1.5998 × 10⁴

Factors of 15998

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 442

Divisors of 15998

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 19 38 421 842 7999 15998
• Sum of all divisors σ(n): 25320
• Sum of proper divisors (its aliquot sum) s(n): 9322
• 15998 is a deficient number, because the sum of its proper divisors (9322) is less than itself. Its deficiency is 6676

Bases of 15998

• Binary: 11111001111110₂
• Hexadecimal: 0x3E7E
• Base-36: CCE

Squares and roots of 15998

• 15998 squared (15998²) is 255936004
• 15998 cubed (15998³) is 4094464191992
• The square root of 15998 is 126.4832004655
• The cube root of 15998 is 25.1973710199

Scales and comparisons

• 15,998 seconds is equal to 4 hours, 26 minutes, 38 seconds.
• To count from 1 to 15,998 would take you about four 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 15998 cubic inches would be around 2.1 feet tall.

Recreational maths with 15998

• 15998 backwards is 89951
• The number of decimal digits it has is: 5
• The sum of 15998's digits is 32
• More coming soon!