72450

Names of 72450

• Cardinal: 72450 can be written as Seventy-two thousand, four hundred fifty.

Scientific notation

• Scientific notation: 7.245 × 10⁴

Factors of 72450

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 40

Divisors of 72450

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 23 25 30 35 42 45 46 50 63 69 70 75 90 105 115 126 138 150 161 175 207 210 225 230 315 322 345 350 414 450 483 525 575 630 690 805 966 1035 1050 1150 1449 1575 1610 1725 2070 2415 2898 3150 3450 4025 4830 5175 7245 8050 10350 12075 14490 24150 36225 72450
• Sum of all divisors σ(n): 232128
• Sum of proper divisors (its aliquot sum) s(n): 159678
• 72450 is an abundant number, because the sum of its proper divisors (159678) is greater than itself. Its abundance is 87228

Bases of 72450

• Binary: 10001101100000010₂
• Hexadecimal: 0x11B02
• Base-36: 1JWI

Squares and roots of 72450

• 72450 squared (72450²) is 5249002500
• 72450 cubed (72450³) is 380290231125000
• The square root of 72450 is 269.1653766739
• The cube root of 72450 is 41.6881666819

Scales and comparisons

• 72,450 seconds is equal to 20 hours, 7 minutes, 30 seconds.
• To count from 1 to 72,450 would take you about twenty 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 72450 cubic inches would be around 3.5 feet tall.

Recreational maths with 72450

• 72450 backwards is 05427
• 72450 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 72450's digits is 18
• More coming soon!