28499130

Names of 28499130

• Cardinal: 28499130 can be written as Twenty-eight million, four hundred ninety-nine thousand, one hundred thirty.

Scientific notation

• Scientific notation: 2.849913 × 10⁷

Factors of 28499130

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2638

Divisors of 28499130

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 5 6 9 10 11 15 18 22 30 33 45 55 66 90 99 110 121 165 198 242 330 363 495 605 726 990 1089 1210 1815 2178 2617 3630 5234 5445 7851 10890 13085 15702 23553 26170 28787 39255 47106 57574 78510 86361 117765 143935 172722 235530 259083 287870 316657 431805 518166 633314 863610 949971 1295415 1583285 1899942 2590830 2849913 3166570 4749855 5699826 9499710 14249565 28499130
• Sum of all divisors σ(n): 81477396
• Sum of proper divisors (its aliquot sum) s(n): 52978266
• 28499130 is an abundant number, because the sum of its proper divisors (52978266) is greater than itself. Its abundance is 24479136

Bases of 28499130

• Binary: 1101100101101110010111010₂
• Hexadecimal: 0x1B2DCBA
• Base-36: GYU2I

Squares and roots of 28499130

• 28499130 squared (28499130²) is 812200410756900
• 28499130 cubed (28499130³) is 23147005092214291497000
• The square root of 28499130 is 5338.4576424281
• The cube root of 28499130 is 305.4526290365

Scales and comparisons

• 28,499,130 seconds is equal to 47 weeks, 20 hours, 25 minutes, 30 seconds.
• To count from 1 to 28,499,130 would take you about eighteen weeks!

  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 28499130 cubic inches would be around 25.5 feet tall.

Recreational maths with 28499130

• 28499130 backwards is 03199482
• The number of decimal digits it has is: 8
• The sum of 28499130's digits is 36
• More coming soon!