18020940

Names of 18020940

• Cardinal: 18020940 can be written as Eighteen million, twenty thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.802094 × 10⁷

Factors of 18020940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 525

Divisors of 18020940

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 107 140 210 214 321 401 420 428 535 642 749 802 1070 1203 1284 1498 1604 1605 2005 2140 2247 2406 2807 2996 3210 3745 4010 4494 4812 5614 6015 6420 7490 8020 8421 8988 11228 11235 12030 14035 14980 16842 22470 24060 28070 33684 42105 42907 44940 56140 84210 85814 128721 168420 171628 214535 257442 300349 429070 514884 600698 643605 858140 901047 1201396 1287210 1501745 1802094 2574420 3003490 3604188 4505235 6006980 9010470 18020940
• Sum of all divisors σ(n): 58351104
• Sum of proper divisors (its aliquot sum) s(n): 40330164
• 18020940 is an abundant number, because the sum of its proper divisors (40330164) is greater than itself. Its abundance is 22309224

Bases of 18020940

• Binary: 1000100101111101001001100₂
• Hexadecimal: 0x112FA4C
• Base-36: AQ91O

Squares and roots of 18020940

• 18020940 squared (18020940²) is 324754278483600
• 18020940 cubed (18020940³) is 5852377367296246584000
• The square root of 18020940 is 4245.1077724835
• The cube root of 18020940 is 262.1757265653

Scales and comparisons

• 18,020,940 seconds is equal to 29 weeks, 5 days, 13 hours, 49 minutes.
• To count from 1 to 18,020,940 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 18020940 cubic inches would be around 21.8 feet tall.

Recreational maths with 18020940

• 18020940 backwards is 04902081
• The number of decimal digits it has is: 8
• The sum of 18020940's digits is 24
• More coming soon!