12969990

Names of 12969990

• Cardinal: 12969990 can be written as Twelve million, nine hundred sixty-nine thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 1.296999 × 10⁷

Factors of 12969990

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 418

Divisors of 12969990

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 5 6 9 10 11 15 18 22 27 30 33 45 54 55 66 90 99 110 121 135 165 198 242 270 297 330 363 397 495 594 605 726 794 990 1089 1191 1210 1485 1815 1985 2178 2382 2970 3267 3573 3630 3970 4367 5445 5955 6534 7146 8734 10719 10890 11910 13101 16335 17865 21438 21835 26202 32670 35730 39303 43670 48037 53595 65505 78606 96074 107190 117909 131010 144111 196515 235818 240185 288222 393030 432333 480370 589545 720555 864666 1179090 1296999 1441110 2161665 2593998 4323330 6484995 12969990
• Sum of all divisors σ(n): 38112480
• Sum of proper divisors (its aliquot sum) s(n): 25142490
• 12969990 is an abundant number, because the sum of its proper divisors (25142490) is greater than itself. Its abundance is 12172500

Bases of 12969990

• Binary: 110001011110100000000110₂
• Hexadecimal: 0xC5E806
• Base-36: 7PZPI

Squares and roots of 12969990

• 12969990 squared (12969990²) is 168220640600100
• 12969990 cubed (12969990³) is 2181820026376890999000
• The square root of 12969990 is 3601.3872327201
• The cube root of 12969990 is 234.9523971785

Scales and comparisons

• 12,969,990 seconds is equal to 21 weeks, 3 days, 2 hours, 46 minutes, 30 seconds.
• To count from 1 to 12,969,990 would take you about thirty-two 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 12969990 cubic inches would be around 19.6 feet tall.

Recreational maths with 12969990

• 12969990 backwards is 09996921
• 12969990 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 12969990's digits is 45
• More coming soon!