18080000

Names of 18080000

• Cardinal: 18080000 can be written as Eighteen million, eighty thousand.

Scientific notation

• Scientific notation: 1.808 × 10⁷

Factors of 18080000

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 120

Divisors of 18080000

• Number of divisors d(n): 90
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 113 125 128 160 200 226 250 256 320 400 452 500 565 625 640 800 904 1000 1130 1250 1280 1600 1808 2000 2260 2500 2825 3200 3616 4000 4520 5000 5650 6400 7232 8000 9040 10000 11300 14125 14464 16000 18080 20000 22600 28250 28928 32000 36160 40000 45200 56500 70625 72320 80000 90400 113000 141250 144640 160000 180800 226000 282500 361600 452000 565000 723200 904000 1130000 1808000 2260000 3616000 4520000 9040000 18080000
• Sum of all divisors σ(n): 45496374
• Sum of proper divisors (its aliquot sum) s(n): 27416374
• 18080000 is an abundant number, because the sum of its proper divisors (27416374) is greater than itself. Its abundance is 9336374

Bases of 18080000

• Binary: 1000100111110000100000000₂
• Hexadecimal: 0x113E100
• Base-36: ARIM8

Squares and roots of 18080000

• 18080000 squared (18080000²) is 326886400000000
• 18080000 cubed (18080000³) is 5910106112000000000000
• The square root of 18080000 is 4252.0583250939
• The cube root of 18080000 is 262.4618236243

Scales and comparisons

• 18,080,000 seconds is equal to 29 weeks, 6 days, 6 hours, 13 minutes, 20 seconds.
• To count from 1 to 18,080,000 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 18080000 cubic inches would be around 21.9 feet tall.

Recreational maths with 18080000

• 18080000 backwards is 00008081
• The number of decimal digits it has is: 8
• The sum of 18080000's digits is 17
• More coming soon!