28118340

Names of 28118340

• Cardinal: 28118340 can be written as Twenty-eight million, one hundred eighteen thousand, three hundred forty.

Scientific notation

• Scientific notation: 2.811834 × 10⁷

Factors of 28118340

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1048

Divisors of 28118340

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 17 18 20 27 30 34 36 45 51 54 60 68 81 85 90 102 108 135 153 162 170 180 204 255 270 306 324 340 405 459 510 540 612 765 810 918 1020 1021 1377 1530 1620 1836 2042 2295 2754 3060 3063 4084 4590 5105 5508 6126 6885 9180 9189 10210 12252 13770 15315 17357 18378 20420 27540 27567 30630 34714 36756 45945 52071 55134 61260 69428 82701 86785 91890 104142 110268 137835 156213 165402 173570 183780 208284 260355 275670 312426 330804 347140 413505 468639 520710 551340 624852 781065 827010 937278 1041420 1405917 1562130 1654020 1874556 2343195 2811834 3124260 4686390 5623668 7029585 9372780 14059170 28118340
• Sum of all divisors σ(n): 93488472
• Sum of proper divisors (its aliquot sum) s(n): 65370132
• 28118340 is an abundant number, because the sum of its proper divisors (65370132) is greater than itself. Its abundance is 37251792

Bases of 28118340

• Binary: 1101011010000110101000100₂
• Hexadecimal: 0x1AD0D44
• Base-36: GQO90

Squares and roots of 28118340

• 28118340 squared (28118340²) is 790641044355600
• 28118340 cubed (28118340³) is 22231513703145841704000
• The square root of 28118340 is 5302.6729109005
• The cube root of 28118340 is 304.0860934597

Scales and comparisons

• 28,118,340 seconds is equal to 46 weeks, 3 days, 10 hours, 39 minutes.
• To count from 1 to 28,118,340 would take you about seventeen 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 28118340 cubic inches would be around 25.3 feet tall.

Recreational maths with 28118340

• 28118340 backwards is 04381182
• 28118340 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28118340's digits is 27
• More coming soon!