28429990225

Names of 28429990225

• Cardinal: 28429990225 can be written as Twenty-eight billion, four hundred twenty-nine million, nine hundred ninety thousand, two hundred twenty-five.

Scientific notation

• Scientific notation: 2.8429990225 × 10¹⁰

Factors of 28429990225

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 855

Divisors of 28429990225

• Number of divisors d(n): 72
• Complete list of divisors:
  1 5 7 13 19 25 35 65 91 95 133 175 247 325 455 475 665 811 1235 1729 2275 3325 4055 5677 6175 8645 10543 15409 20275 28385 43225 52715 73801 77045 107863 141925 200317 263575 369005 385225 539315 657721 1001585 1402219 1845025 2696575 3288605 4604047 5007925 7011095 8550373 12496699 16443025 23020235 35055475 42751865 59852611 62483495 87476893 115101175 162457087 213759325 299263055 312417475 437384465 812285435 1137199609 1496315275 2186922325 4061427175 5685998045 28429990225
• Sum of all divisors σ(n): 45728531520
• Sum of proper divisors (its aliquot sum) s(n): 17298541295
• 28429990225 is a deficient number, because the sum of its proper divisors (17298541295) is less than itself. Its deficiency is 11131448930

Bases of 28429990225

• Binary: 11010011110100011110011100101010001₂
• Hexadecimal: 0x69E8F3951
• Base-36: D26HCUP

Squares and roots of 28429990225

• 28429990225 squared (28429990225²) is 808264344193595550625
• 28429990225 cubed (28429990225³) is 22978947404639957011872242640625
• The square root of 28429990225 is 168611.9516078265
• The cube root of 28429990225 is 3052.0541649037

Scales and comparisons

• 28,429,990,225 seconds is equal to 903 years, 51 weeks, 1 day, 19 hours, 30 minutes, 25 seconds.
• To count from 1 to 28,429,990,225 would take you about one thousand, eight hundred seven 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 28429990225 cubic inches would be around 254.3 feet tall.

Recreational maths with 28429990225

• 28429990225 backwards is 52209992482
• The number of decimal digits it has is: 11
• The sum of 28429990225's digits is 52
• More coming soon!