18952020

Names of 18952020

• Cardinal: 18952020 can be written as Eighteen million, nine hundred fifty-two thousand and twenty.

Scientific notation

• Scientific notation: 1.895202 × 10⁷

Factors of 18952020

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 720

Divisors of 18952020

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 211 422 499 633 844 998 1055 1266 1497 1899 1996 2110 2495 2532 2994 3165 3798 4220 4491 4990 5988 6330 7485 7596 8982 9495 9980 12660 14970 17964 18990 22455 29940 37980 44910 89820 105289 210578 315867 421156 526445 631734 947601 1052890 1263468 1579335 1895202 2105780 3158670 3790404 4738005 6317340 9476010 18952020
• Sum of all divisors σ(n): 57876000
• Sum of proper divisors (its aliquot sum) s(n): 38923980
• 18952020 is an abundant number, because the sum of its proper divisors (38923980) is greater than itself. Its abundance is 19971960

Bases of 18952020

• Binary: 1001000010010111101010100₂
• Hexadecimal: 0x1212F54
• Base-36: BA7H0

Squares and roots of 18952020

• 18952020 squared (18952020²) is 359179062080400
• 18952020 cubed (18952020³) is 6807168768128982408000
• The square root of 18952020 is 4353.3917811291
• The cube root of 18952020 is 266.6153616577

Scales and comparisons

• 18,952,020 seconds is equal to 31 weeks, 2 days, 8 hours, 27 minutes.
• To count from 1 to 18,952,020 would take you about forty-seven 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 18952020 cubic inches would be around 22.2 feet tall.

Recreational maths with 18952020

• 18952020 backwards is 02025981
• The number of decimal digits it has is: 8
• The sum of 18952020's digits is 27
• More coming soon!