28861000

Names of 28861000

• Cardinal: 28861000 can be written as Twenty-eight million, eight hundred sixty-one thousand.

Scientific notation

• Scientific notation: 2.8861 × 10⁷

Factors of 28861000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 64

Divisors of 28861000

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 7 8 10 14 19 20 25 28 31 35 38 40 49 50 56 62 70 76 95 98 100 124 125 133 140 152 155 175 190 196 200 217 245 248 250 266 280 310 350 380 392 434 475 490 500 532 589 620 665 700 760 775 868 875 931 950 980 1000 1064 1085 1178 1225 1240 1330 1400 1519 1550 1736 1750 1862 1900 1960 2170 2356 2375 2450 2660 2945 3038 3100 3325 3500 3724 3800 3875 4123 4340 4655 4712 4750 4900 5320 5425 5890 6076 6125 6200 6650 7000 7448 7595 7750 8246 8680 9310 9500 9800 10850 11780 12152 12250 13300 14725 15190 15500 16492 16625 18620 19000 20615 21700 23275 23560 24500 26600 27125 28861 29450 30380 31000 32984 33250 37240 37975 41230 43400 46550 49000 54250 57722 58900 60760 66500 73625 75950 82460 93100 103075 108500 115444 116375 117800 133000 144305 147250 151900 164920 186200 189875 206150 217000 230888 232750 288610 294500 303800 379750 412300 465500 515375 577220 589000 721525 759500 824600 931000 1030750 1154440 1443050 1519000 2061500 2886100 3607625 4123000 5772200 7215250 14430500 28861000
• Sum of all divisors σ(n): 85363200
• Sum of proper divisors (its aliquot sum) s(n): 56502200
• 28861000 is an abundant number, because the sum of its proper divisors (56502200) is greater than itself. Its abundance is 27641200

Bases of 28861000

• Binary: 1101110000110001001001000₂
• Hexadecimal: 0x1B86248
• Base-36: H6LAG

Squares and roots of 28861000

• 28861000 squared (28861000²) is 832957321000000
• 28861000 cubed (28861000³) is 24039981241381000000000
• The square root of 28861000 is 5372.2434792179
• The cube root of 28861000 is 306.7400318067

Scales and comparisons

• 28,861,000 seconds is equal to 47 weeks, 5 days, 56 minutes, 40 seconds.
• To count from 1 to 28,861,000 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 28861000 cubic inches would be around 25.6 feet tall.

Recreational maths with 28861000

• 28861000 backwards is 00016882
• 28861000 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28861000's digits is 25
• More coming soon!