68909742

Names of 68909742

• Cardinal: 68909742 can be written as Sixty-eight million, nine hundred nine thousand, seven hundred forty-two.

Scientific notation

• Scientific notation: 6.8909742 × 10⁷

Factors of 68909742

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1136

Divisors of 68909742

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 9 11 18 22 29 33 58 66 87 99 121 174 198 242 261 319 363 522 638 726 957 1089 1091 1914 2178 2182 2871 3273 3509 5742 6546 7018 9819 10527 12001 19638 21054 24002 31581 31639 36003 63162 63278 72006 94917 108009 132011 189834 216018 264022 284751 348029 396033 569502 696058 792066 1044087 1188099 2088174 2376198 3132261 3828319 6264522 7656638 11484957 22969914 34454871 68909742
• Sum of all divisors σ(n): 169926120
• Sum of proper divisors (its aliquot sum) s(n): 101016378
• 68909742 is an abundant number, because the sum of its proper divisors (101016378) is greater than itself. Its abundance is 32106636

Bases of 68909742

• Binary: 100000110110111101010101110₂
• Hexadecimal: 0x41B7AAE
• Base-36: 150Z3I

Squares and roots of 68909742

• 68909742 squared (68909742²) is 4748552542506564
• 68909742 cubed (68909742³) is 327221530577571358546488
• The square root of 68909742 is 8301.1891919171
• The cube root of 68909742 is 409.9776747709

Scales and comparisons

• 68,909,742 seconds is equal to 2 years, 9 weeks, 6 days, 13 hours, 35 minutes, 42 seconds.
• To count from 1 to 68,909,742 would take you about three years!

  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 68909742 cubic inches would be around 34.2 feet tall.

Recreational maths with 68909742

• 68909742 backwards is 24790986
• The number of decimal digits it has is: 8
• The sum of 68909742's digits is 45
• More coming soon!