28980070

Names of 28980070

• Cardinal: 28980070 can be written as Twenty-eight million, nine hundred eighty thousand and seventy.

Scientific notation

• Scientific notation: 2.898007 × 10⁷

Factors of 28980070

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 102

Divisors of 28980070

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 5 7 10 14 17 34 35 49 70 71 85 98 119 142 170 238 245 343 355 490 497 595 686 710 833 994 1190 1207 1666 1715 2401 2414 2485 3430 3479 4165 4802 4970 5831 6035 6958 8330 8449 11662 12005 12070 16898 17395 24010 24353 29155 34790 40817 42245 48706 58310 59143 81634 84490 118286 121765 170471 204085 243530 295715 340942 408170 414001 591430 828002 852355 1704710 2070005 2898007 4140010 5796014 14490035 28980070
• Sum of all divisors σ(n): 65341728
• Sum of proper divisors (its aliquot sum) s(n): 36361658
• 28980070 is an abundant number, because the sum of its proper divisors (36361658) is greater than itself. Its abundance is 7381588

Bases of 28980070

• Binary: 1101110100011001101100110₂
• Hexadecimal: 0x1BA3366
• Base-36: H955Y

Squares and roots of 28980070

• 28980070 squared (28980070²) is 839844457204900
• 28980070 cubed (28980070³) is 24338751158910006343000
• The square root of 28980070 is 5383.3140350531
• The cube root of 28980070 is 307.1612856645

Scales and comparisons

• 28,980,070 seconds is equal to 47 weeks, 6 days, 10 hours, 1 minute, 10 seconds.
• To count from 1 to 28,980,070 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 28980070 cubic inches would be around 25.6 feet tall.

Recreational maths with 28980070

• 28980070 backwards is 07008982
• 28980070 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28980070's digits is 34
• More coming soon!