18001984

Names of 18001984

• Cardinal: 18001984 can be written as Eighteen million, one thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 1.8001984 × 10⁷

Factors of 18001984

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 314

Divisors of 18001984

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 4 7 8 11 13 14 16 22 26 28 32 44 52 56 64 77 88 91 104 112 143 154 176 182 208 224 281 286 308 352 364 416 448 562 572 616 704 728 832 1001 1124 1144 1232 1456 1967 2002 2248 2288 2464 2912 3091 3653 3934 4004 4496 4576 4928 5824 6182 7306 7868 8008 8992 9152 12364 14612 15736 16016 17984 21637 24728 25571 29224 31472 32032 40183 43274 49456 51142 58448 62944 64064 80366 86548 98912 102284 116896 125888 160732 173096 197824 204568 233792 281281 321464 346192 409136 562562 642928 692384 818272 1125124 1285856 1384768 1636544 2250248 2571712 4500496 9000992 18001984
• Sum of all divisors σ(n): 48134016
• Sum of proper divisors (its aliquot sum) s(n): 30132032
• 18001984 is an abundant number, because the sum of its proper divisors (30132032) is greater than itself. Its abundance is 12130048

Bases of 18001984

• Binary: 1000100101011000001000000₂
• Hexadecimal: 0x112B040
• Base-36: APUF4

Squares and roots of 18001984

• 18001984 squared (18001984²) is 324071427936256
• 18001984 cubed (18001984³) is 5833928660565633531904
• The square root of 18001984 is 4242.8744973191
• The cube root of 18001984 is 262.0837678651

Scales and comparisons

• 18,001,984 seconds is equal to 29 weeks, 5 days, 8 hours, 33 minutes, 4 seconds.
• To count from 1 to 18,001,984 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 18001984 cubic inches would be around 21.8 feet tall.

Recreational maths with 18001984

• 18001984 backwards is 48910081
• The number of decimal digits it has is: 8
• The sum of 18001984's digits is 31
• More coming soon!