85138142

Names of 85138142

• Cardinal: 85138142 can be written as Eighty-five million, one hundred thirty-eight thousand, one hundred forty-two.

Scientific notation

• Scientific notation: 8.5138142 × 10⁷

Factors of 85138142

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1220

Divisors of 85138142

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 17 29 34 58 79 158 493 986 1093 1343 2186 2291 2686 4582 18581 31697 37162 38947 63394 77894 86347 172694 538849 1077698 1467899 2504063 2935798 5008126 42569071 85138142
• Sum of all divisors σ(n): 141782400
• Sum of proper divisors (its aliquot sum) s(n): 56644258
• 85138142 is a deficient number, because the sum of its proper divisors (56644258) is less than itself. Its deficiency is 28493884

Bases of 85138142

• Binary: 101000100110001101011011110₂
• Hexadecimal: 0x5131ADE
• Base-36: 1EOT0E

Squares and roots of 85138142

• 85138142 squared (85138142²) is 7248503223212164
• 85138142 cubed (85138142³) is 617124096705294914759288
• The square root of 85138142 is 9227.0332176709
• The cube root of 85138142 is 439.9210292157

Scales and comparisons

• 85,138,142 seconds is equal to 2 years, 36 weeks, 5 days, 9 hours, 29 minutes, 2 seconds.
• To count from 1 to 85,138,142 would take you about four 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 85138142 cubic inches would be around 36.7 feet tall.

Recreational maths with 85138142

• 85138142 backwards is 24183158
• The number of decimal digits it has is: 8
• The sum of 85138142's digits is 32
• More coming soon!