18196668

Names of 18196668

• Cardinal: 18196668 can be written as Eighteen million, one hundred ninety-six thousand, six hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8196668 × 10⁷

Factors of 18196668

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 618

Divisors of 18196668

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 163 252 326 443 489 652 886 978 1141 1329 1467 1772 1956 2282 2658 2934 3101 3423 3987 4564 5316 5868 6202 6846 7974 9303 10269 12404 13692 15948 18606 20538 27909 37212 41076 55818 72209 111636 144418 216627 288836 433254 505463 649881 866508 1010926 1299762 1516389 2021852 2599524 3032778 4549167 6065556 9098334 18196668
• Sum of all divisors σ(n): 53010048
• Sum of proper divisors (its aliquot sum) s(n): 34813380
• 18196668 is an abundant number, because the sum of its proper divisors (34813380) is greater than itself. Its abundance is 16616712

Bases of 18196668

• Binary: 1000101011010100010111100₂
• Hexadecimal: 0x115A8BC
• Base-36: AU0N0

Squares and roots of 18196668

• 18196668 squared (18196668²) is 331118726302224
• 18196668 cubed (18196668³) is 6025257531104437789632
• The square root of 18196668 is 4265.7552672417
• The cube root of 18196668 is 263.0251581903

Scales and comparisons

• 18,196,668 seconds is equal to 30 weeks, 14 hours, 37 minutes, 48 seconds.
• To count from 1 to 18,196,668 would take you about forty-five 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 18196668 cubic inches would be around 21.9 feet tall.

Recreational maths with 18196668

• 18196668 backwards is 86669181
• The number of decimal digits it has is: 8
• The sum of 18196668's digits is 45
• More coming soon!