28112940

Names of 28112940

• Cardinal: 28112940 can be written as Twenty-eight million, one hundred twelve thousand, nine hundred forty.

Scientific notation

• Scientific notation: 2.811294 × 10⁷

Factors of 28112940

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 748

Divisors of 28112940

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 79 90 108 135 158 180 237 270 316 395 474 540 659 711 790 948 1185 1318 1422 1580 1977 2133 2370 2636 2844 3295 3555 3954 4266 4740 5931 6590 7110 7908 8532 9885 10665 11862 13180 14220 17793 19770 21330 23724 29655 35586 39540 42660 52061 59310 71172 88965 104122 118620 156183 177930 208244 260305 312366 355860 468549 520610 624732 780915 937098 1041220 1405647 1561830 1874196 2342745 2811294 3123660 4685490 5622588 7028235 9370980 14056470 28112940
• Sum of all divisors σ(n): 88704000
• Sum of proper divisors (its aliquot sum) s(n): 60591060
• 28112940 is an abundant number, because the sum of its proper divisors (60591060) is greater than itself. Its abundance is 32478120

Bases of 28112940

• Binary: 1101011001111100000101100₂
• Hexadecimal: 0x1ACF82C
• Base-36: GQK30

Squares and roots of 28112940

• 28112940 squared (28112940²) is 790337395443600
• 28112940 cubed (28112940³) is 22218707777862200184000
• The square root of 28112940 is 5302.1637092795
• The cube root of 28112940 is 304.0666260939

Scales and comparisons

• 28,112,940 seconds is equal to 46 weeks, 3 days, 9 hours, 9 minutes.
• To count from 1 to 28,112,940 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 28112940 cubic inches would be around 25.3 feet tall.

Recreational maths with 28112940

• 28112940 backwards is 04921182
• 28112940 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28112940's digits is 27
• More coming soon!