16991215489

Names of 16991215489

• Cardinal: 16991215489 can be written as Sixteen billion, nine hundred ninety-one million, two hundred fifteen thousand, four hundred eighty-nine.

Scientific notation

• Scientific notation: 1.6991215489 × 10¹⁰

Factors of 16991215489

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 2535550

Divisors of 16991215489

• Number of divisors d(n): 4
• Complete list of divisors:
  1 6719 2528831 16991215489
• Sum of all divisors σ(n): 16993751040
• Sum of proper divisors (its aliquot sum) s(n): 2535551
• 16991215489 is a deficient number, because the sum of its proper divisors (2535551) is less than itself. Its deficiency is 16988679938

Bases of 16991215489

• Binary: 1111110100110000010101111110000001₂
• Hexadecimal: 0x3F4C15F81
• Base-36: 7T04PS1

Squares and roots of 16991215489

• 16991215489 squared (16991215489²) is 288701403793633509121
• 16991215489 cubed (16991215489³) is 4905387763834429039766157975169
• The square root of 16991215489 is 130350.3566891935
• The cube root of 16991215489 is 2570.8386231461

Scales and comparisons

• 16,991,215,489 seconds is equal to 540 years, 13 weeks, 6 days, 14 hours, 4 minutes, 49 seconds.
• To count from 1 to 16,991,215,489 would take you about one thousand and eighty 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 16991215489 cubic inches would be around 214.2 feet tall.

Recreational maths with 16991215489

• 16991215489 backwards is 98451219961
• The number of decimal digits it has is: 11
• The sum of 16991215489's digits is 55
• More coming soon!