18072000

Names of 18072000

• Cardinal: 18072000 can be written as Eighteen million, seventy-two thousand.

Scientific notation

• Scientific notation: 1.8072 × 10⁷

Factors of 18072000

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 261

Divisors of 18072000

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 32 36 40 45 48 50 60 64 72 75 80 90 96 100 120 125 144 150 160 180 192 200 225 240 250 251 288 300 320 360 375 400 450 480 500 502 576 600 720 750 753 800 900 960 1000 1004 1125 1200 1255 1440 1500 1506 1600 1800 2000 2008 2250 2259 2400 2510 2880 3000 3012 3600 3765 4000 4016 4500 4518 4800 5020 6000 6024 6275 7200 7530 8000 8032 9000 9036 10040 11295 12000 12048 12550 14400 15060 16064 18000 18072 18825 20080 22590 24000 24096 25100 30120 31375 36000 36144 37650 40160 45180 48192 50200 56475 60240 62750 72000 72288 75300 80320 90360 94125 100400 112950 120480 125500 144576 150600 180720 188250 200800 225900 240960 251000 282375 301200 361440 376500 401600 451800 502000 564750 602400 722880 753000 903600 1004000 1129500 1204800 1506000 1807200 2008000 2259000 3012000 3614400 4518000 6024000 9036000 18072000
• Sum of all divisors σ(n): 64904112
• Sum of proper divisors (its aliquot sum) s(n): 46832112
• 18072000 is an abundant number, because the sum of its proper divisors (46832112) is greater than itself. Its abundance is 28760112

Bases of 18072000

• Binary: 1000100111100000111000000₂
• Hexadecimal: 0x113C1C0
• Base-36: ARCG0

Squares and roots of 18072000

• 18072000 squared (18072000²) is 326597184000000
• 18072000 cubed (18072000³) is 5902264309248000000000
• The square root of 18072000 is 4251.1175001405
• The cube root of 18072000 is 262.4231067297

Scales and comparisons

• 18,072,000 seconds is equal to 29 weeks, 6 days, 4 hours.
• To count from 1 to 18,072,000 would take you about forty-four 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 18072000 cubic inches would be around 21.9 feet tall.

Recreational maths with 18072000

• 18072000 backwards is 00027081
• 18072000 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 18072000's digits is 18
• More coming soon!