1221159967

Names of 1221159967

• Cardinal: 1221159967 can be written as One billion, two hundred twenty-one million, one hundred fifty-nine thousand, nine hundred sixty-seven.

Scientific notation

• Scientific notation: 1.221159967 × 10⁹

Factors of 1221159967

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 916173

Divisors of 1221159967

• Number of divisors d(n): 8
• Complete list of divisors:
  1 31 43 1333 916099 28399069 39392257 1221159967
• Sum of all divisors σ(n): 1289868800
• Sum of proper divisors (its aliquot sum) s(n): 68708833
• 1221159967 is a deficient number, because the sum of its proper divisors (68708833) is less than itself. Its deficiency is 1152451134

Bases of 1221159967

• Binary: 1001000110010010110110000011111₂
• Hexadecimal: 0x48C96C1F
• Base-36: K71P27

Squares and roots of 1221159967

• 1221159967 squared (1221159967²) is 1491231665003441089
• 1221159967 cubed (1221159967³) is 1821032410824957175129684063
• The square root of 1221159967 is 34945.0993273735
• The cube root of 1221159967 is 1068.8682729385

Scales and comparisons

• 1,221,159,967 seconds is equal to 38 years, 43 weeks, 19 hours, 6 minutes, 7 seconds.
• To count from 1 to 1,221,159,967 would take you about seventy-seven 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 1221159967 cubic inches would be around 89.1 feet tall.

Recreational maths with 1221159967

• 1221159967 backwards is 7699511221
• 1221159967 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1221159967's digits is 43
• More coming soon!