172021091

Names of 172021091

• Cardinal: 172021091 can be written as One hundred seventy-two million, twenty-one thousand and ninety-one.

Scientific notation

• Scientific notation: 1.72021091 × 10⁸

Factors of 172021091

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 7941

Divisors of 172021091

• Number of divisors d(n): 8
• Complete list of divisors:
  1 11 3677 4253 40447 46783 15638281 172021091
• Sum of all divisors σ(n): 187754544
• Sum of proper divisors (its aliquot sum) s(n): 15733453
• 172021091 is a deficient number, because the sum of its proper divisors (15733453) is less than itself. Its deficiency is 156287638

Bases of 172021091

• Binary: 1010010000001101010101100011₂
• Hexadecimal: 0xA40D563
• Base-36: 2UF0BN

Squares and roots of 172021091

• 172021091 squared (172021091²) is 29591255748830281
• 172021091 cubed (172021091³) is 5090320097973806911456571
• The square root of 172021091 is 13115.6811107925
• The cube root of 172021091 is 556.1525069889

Scales and comparisons

• 172,021,091 seconds is equal to 5 years, 24 weeks, 2 days, 23 hours, 38 minutes, 11 seconds.
• To count from 1 to 172,021,091 would take you about eight 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 172021091 cubic inches would be around 46.3 feet tall.

Recreational maths with 172021091

• 172021091 backwards is 190120271
• The number of decimal digits it has is: 9
• The sum of 172021091's digits is 23
• More coming soon!