121802015

Names of 121802015

• Cardinal: 121802015 can be written as One hundred twenty-one million, eight hundred two thousand and fifteen.

Scientific notation

• Scientific notation: 1.21802015 × 10⁸

Factors of 121802015

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 566569

Divisors of 121802015

• Number of divisors d(n): 8
• Complete list of divisors:
  1 5 43 215 566521 2832605 24360403 121802015
• Sum of all divisors σ(n): 149561808
• Sum of proper divisors (its aliquot sum) s(n): 27759793
• 121802015 is a deficient number, because the sum of its proper divisors (27759793) is less than itself. Its deficiency is 94042222

Bases of 121802015

• Binary: 111010000101000110100011111₂
• Hexadecimal: 0x7428D1F
• Base-36: 20IN1B

Squares and roots of 121802015

• 121802015 squared (121802015²) is 14835730858060225
• 121802015 cubed (121802015³) is 1807021912509414396353375
• The square root of 121802015 is 11036.3950183019
• The cube root of 121802015 is 495.6991311273

Scales and comparisons

• 121,802,015 seconds is equal to 3 years, 45 weeks, 2 days, 17 hours, 53 minutes, 35 seconds.
• To count from 1 to 121,802,015 would take you about five 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 121802015 cubic inches would be around 41.3 feet tall.

Recreational maths with 121802015

• 121802015 backwards is 510208121
• The number of decimal digits it has is: 9
• The sum of 121802015's digits is 20
• More coming soon!