728240625

Names of 728240625

• Cardinal: 728240625 can be written as Seven hundred twenty-eight million, two hundred forty thousand, six hundred twenty-five.

Scientific notation

• Scientific notation: 7.28240625 × 10⁸

Factors of 728240625

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 152

Divisors of 728240625

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 5 7 9 15 21 25 27 35 45 63 75 81 105 125 135 137 175 189 225 243 315 375 405 411 525 567 625 675 685 875 945 959 1125 1215 1233 1575 1701 1875 2025 2055 2625 2835 2877 3125 3375 3425 3699 4375 4725 4795 5625 6075 6165 7875 8505 8631 9375 10125 10275 11097 13125 14175 14385 16875 17125 18495 21875 23625 23975 25893 28125 30375 30825 33291 39375 42525 43155 50625 51375 55485 65625 70875 71925 77679 84375 85625 92475 118125 119875 129465 151875 154125 166455 196875 212625 215775 233037 253125 256875 277425 354375 359625 388395 428125 462375 590625 599375 647325 759375 770625 832275 1063125 1078875 1165185 1284375 1387125 1771875 1798125 1941975 2311875 2996875 3236625 3853125 4161375 5315625 5394375 5825925 6935625 8990625 9709875 11559375 16183125 20806875 26971875 29129625 34678125 48549375 80915625 104034375 145648125 242746875 728240625
• Sum of all divisors σ(n): 1569649536
• Sum of proper divisors (its aliquot sum) s(n): 841408911
• 728240625 is an abundant number, because the sum of its proper divisors (841408911) is greater than itself. Its abundance is 113168286

Bases of 728240625

• Binary: 101011011010000001000111110001₂
• Hexadecimal: 0x2B6811F1
• Base-36: C1KQ29

Squares and roots of 728240625

• 728240625 squared (728240625²) is 530334407900390625
• 728240625 cubed (728240625³) is 386211060668385406494140625
• The square root of 728240625 is 26985.9338359821
• The cube root of 728240625 is 899.6873914305

Scales and comparisons

• 728,240,625 seconds is equal to 23 years, 8 weeks, 17 hours, 3 minutes, 45 seconds.
• To count from 1 to 728,240,625 would take you about thirty-four years!

  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 728240625 cubic inches would be around 75 feet tall.

Recreational maths with 728240625

• 728240625 backwards is 526042827
• The number of decimal digits it has is: 9
• The sum of 728240625's digits is 36
• More coming soon!