728425791938

Names of 728425791938

• Cardinal: 728425791938 can be written as Seven hundred twenty-eight billion, four hundred twenty-five million, seven hundred ninety-one thousand, nine hundred thirty-eight.

Scientific notation

• Scientific notation: 7.28425791938 × 10¹¹

Factors of 728425791938

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 16899

Divisors of 728425791938

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 13 23 26 46 73 146 299 598 949 1061 1679 1898 2122 3358 13793 15727 21827 24403 27586 31454 43654 48806 77453 154906 204451 317239 361721 408902 634478 723442 1006889 1148071 1781419 2013778 2296142 3562838 4702373 9404746 14924923 16686347 23158447 26405633 29849846 33372694 46316894 52811266 216922511 343273229 383785981 433845022 686546458 767571962 1218103331 2436206662 4989217753 9978435506 15835343303 28016376613 31670686606 56032753226 364212895969 728425791938
• Sum of all divisors σ(n): 1245920320512
• Sum of proper divisors (its aliquot sum) s(n): 517494528574
• 728425791938 is a deficient number, because the sum of its proper divisors (517494528574) is less than itself. Its deficiency is 210931263364

Bases of 728425791938

• Binary: 1010100110011001100011111000000111000010₂
• Hexadecimal: 0xA9998F81C2
• Base-36: 9AMTWQ82

Squares and roots of 728425791938

• 728425791938 squared (728425791938²) is 530604134360502465795844
• 728425791938 cubed (728425791938³) is 386505736777125965834939423129105672
• The square root of 728425791938 is 853478.6417585387
• The cube root of 728425791938 is 8997.6363831717

Scales and comparisons

• 728,425,791,938 seconds is equal to 23,161 years, 35 weeks, 5 days, 1 hour, 45 minutes, 38 seconds.
• To count from 1 to 728,425,791,938 would take you about forty-six thousand, three hundred twenty-three 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 728425791938 cubic inches would be around 749.8 feet tall.

Recreational maths with 728425791938

• 728425791938 backwards is 839197524827
• The number of decimal digits it has is: 12
• The sum of 728425791938's digits is 65
• More coming soon!