1288072225

Names of 1288072225

• Cardinal: 1288072225 can be written as One billion, two hundred eighty-eight million, seventy-two thousand, two hundred twenty-five.

Scientific notation

• Scientific notation: 1.288072225 × 10⁹

Factors of 1288072225

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 415

Divisors of 1288072225

• Number of divisors d(n): 72
• Complete list of divisors:
  1 5 11 19 25 55 73 95 121 209 275 307 365 475 605 803 1045 1387 1535 1825 2299 3025 3377 4015 5225 5833 6935 7675 8833 11495 15257 16885 20075 22411 29165 34675 37147 44165 57475 64163 76285 84425 112055 145825 167827 185735 220825 246521 320815 381425 425809 560275 705793 839135 928675 1232605 1604075 2129045 2711731 3528965 4195675 4683899 6163025 10645225 13558655 17644825 23419495 51522889 67793275 117097475 257614445 1288072225
• Sum of all divisors σ(n): 1879428320
• Sum of proper divisors (its aliquot sum) s(n): 591356095
• 1288072225 is a deficient number, because the sum of its proper divisors (591356095) is less than itself. Its deficiency is 696716130

Bases of 1288072225

• Binary: 1001100110001100110110000100001₂
• Hexadecimal: 0x4CC66C21
• Base-36: LAVUW1

Squares and roots of 1288072225

• 1288072225 squared (1288072225²) is 1659130056816450625
• 1288072225 cubed (1288072225³) is 2137079343847941973146390625
• The square root of 1288072225 is 35889.7231112193
• The cube root of 1288072225 is 1088.0447018043

Scales and comparisons

• 1,288,072,225 seconds is equal to 40 years, 49 weeks, 5 days, 5 hours, 50 minutes, 25 seconds.
• To count from 1 to 1,288,072,225 would take you about eighty-one 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 1288072225 cubic inches would be around 90.7 feet tall.

Recreational maths with 1288072225

• 1288072225 backwards is 5222708821
• The number of decimal digits it has is: 10
• The sum of 1288072225's digits is 37
• More coming soon!