28979769

Names of 28979769

• Cardinal: 28979769 can be written as Twenty-eight million, nine hundred seventy-nine thousand, seven hundred sixty-nine.

Scientific notation

• Scientific notation: 2.8979769 × 10⁷

Factors of 28979769

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 230

Divisors of 28979769

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 7 13 19 21 37 39 57 91 111 133 151 247 259 273 399 453 481 703 741 777 1057 1443 1729 1963 2109 2869 3171 3367 4921 5187 5587 5889 8607 9139 10101 13741 14763 16761 20083 27417 37297 39109 41223 60249 63973 72631 106153 111891 117327 191919 217893 261079 318459 508417 743071 783237 1379989 1525251 2229213 4139967 9659923 28979769
• Sum of all divisors σ(n): 51752960
• Sum of proper divisors (its aliquot sum) s(n): 22773191
• 28979769 is a deficient number, because the sum of its proper divisors (22773191) is less than itself. Its deficiency is 6206578

Bases of 28979769

• Binary: 1101110100011001000111001₂
• Hexadecimal: 0x1BA3239
• Base-36: H94XL

Squares and roots of 28979769

• 28979769 squared (28979769²) is 839827011293361
• 28979769 cubed (28979769³) is 24337992787241993013609
• The square root of 28979769 is 5383.2860782239
• The cube root of 28979769 is 307.1602222225

Scales and comparisons

• 28,979,769 seconds is equal to 47 weeks, 6 days, 9 hours, 56 minutes, 9 seconds.
• To count from 1 to 28,979,769 would take you about nineteen 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 28979769 cubic inches would be around 25.6 feet tall.

Recreational maths with 28979769

• 28979769 backwards is 96797982
• 28979769 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28979769's digits is 57
• More coming soon!