12215385

Names of 12215385

• Cardinal: 12215385 can be written as Twelve million, two hundred fifteen thousand, three hundred eighty-five.

Scientific notation

• Scientific notation: 1.2215385 × 10⁷

Factors of 12215385

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 204

Divisors of 12215385

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 5 7 9 13 15 19 21 35 39 45 57 63 65 91 95 105 117 133 157 171 195 247 273 285 315 399 455 471 585 665 741 785 819 855 1099 1197 1235 1365 1413 1729 1995 2041 2223 2355 2983 3297 3705 4095 5187 5495 5985 6123 7065 8645 8949 9891 10205 11115 14287 14915 15561 16485 18369 20881 25935 26847 30615 38779 42861 44745 49455 62643 71435 77805 91845 104405 116337 128583 134235 187929 193895 214305 271453 313215 349011 581685 642915 814359 939645 1357265 1745055 2443077 4071795 12215385
• Sum of all divisors σ(n): 27605760
• Sum of proper divisors (its aliquot sum) s(n): 15390375
• 12215385 is an abundant number, because the sum of its proper divisors (15390375) is greater than itself. Its abundance is 3174990

Bases of 12215385

• Binary: 101110100110010001011001₂
• Hexadecimal: 0xBA6459
• Base-36: 79TG9

Squares and roots of 12215385

• 12215385 squared (12215385²) is 149215630698225
• 12215385 cubed (12215385³) is 1822726376996637191625
• The square root of 12215385 is 3495.0515017665
• The cube root of 12215385 is 230.3044801711

Scales and comparisons

• 12,215,385 seconds is equal to 20 weeks, 1 day, 9 hours, 9 minutes, 45 seconds.
• To count from 1 to 12,215,385 would take you about thirty 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 12215385 cubic inches would be around 19.2 feet tall.

Recreational maths with 12215385

• 12215385 backwards is 58351221
• The number of decimal digits it has is: 8
• The sum of 12215385's digits is 27
• More coming soon!