25530

Names of 25530

• Cardinal: 25530 can be written as Twenty-five thousand, five hundred thirty.

Scientific notation

• Scientific notation: 2.553 × 10⁴

Factors of 25530

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 70

Divisors of 25530

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 3 5 6 10 15 23 30 37 46 69 74 111 115 138 185 222 230 345 370 555 690 851 1110 1702 2553 4255 5106 8510 12765 25530
• Sum of all divisors σ(n): 65664
• Sum of proper divisors (its aliquot sum) s(n): 40134
• 25530 is an abundant number, because the sum of its proper divisors (40134) is greater than itself. Its abundance is 14604

Bases of 25530

• Binary: 110001110111010₂
• Hexadecimal: 0x63BA
• Base-36: JP6

Squares and roots of 25530

• 25530 squared (25530²) is 651780900
• 25530 cubed (25530³) is 16639966377000
• The square root of 25530 is 159.7811002591
• The cube root of 25530 is 29.4453647381

Scales and comparisons

• 25,530 seconds is equal to 7 hours, 5 minutes, 30 seconds.
• To count from 1 to 25,530 would take you about seven 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 25530 cubic inches would be around 2.5 feet tall.

Recreational maths with 25530

• 25530 backwards is 03552
• 25530 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 25530's digits is 15
• More coming soon!