90148138

Names of 90148138

• Cardinal: 90148138 can be written as Ninety million, one hundred forty-eight thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 9.0148138 × 10⁷

Factors of 90148138

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 617528

Divisors of 90148138

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 73 146 617453 1234906 45074069 90148138
• Sum of all divisors σ(n): 137074788
• Sum of proper divisors (its aliquot sum) s(n): 46926650
• 90148138 is a deficient number, because the sum of its proper divisors (46926650) is less than itself. Its deficiency is 43221488

Bases of 90148138

• Binary: 101010111111000110100101010₂
• Hexadecimal: 0x55F8D2A
• Base-36: 1HO6QY

Squares and roots of 90148138

• 90148138 squared (90148138²) is 8126686784867044
• 90148138 cubed (90148138³) is 732605681764970594164072
• The square root of 90148138 is 9494.6373285133
• The cube root of 90148138 is 448.3862162973

Scales and comparisons

• 90,148,138 seconds is equal to 2 years, 45 weeks, 9 hours, 8 minutes, 58 seconds.
• To count from 1 to 90,148,138 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 90148138 cubic inches would be around 37.4 feet tall.

Recreational maths with 90148138

• 90148138 backwards is 83184109
• The number of decimal digits it has is: 8
• The sum of 90148138's digits is 34
• More coming soon!