991413572477397201

Names of 991413572477397201

• Cardinal: 991413572477397201 can be written as Nine hundred ninety-one quadrillion, four hundred thirteen trillion, five hundred seventy-two billion, four hundred seventy-seven million, three hundred ninety-seven thousand, two hundred one.

Scientific notation

• Scientific notation: 9.91413572477397201 × 10¹⁷

Factors of 991413572477397201

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 21490899620

Divisors of 991413572477397201

• Number of divisors d(n): 32
• Complete list of divisors:
  1 3 9 11 27 33 99 297 155327 465981 1397943 1708597 4193829 5125791 15377373 46132119 21490744279 64472232837 193416698511 236398187069 580250095533 709194561207 2127583683621 6382751050863 3338092836624233 10014278509872699 30042835529618097 36719021202866563 90128506588854291 110157063608599689 330471190825799067 991413572477397201
• Sum of all divisors σ(n): 1602294877211443200
• Sum of proper divisors (its aliquot sum) s(n): 610881304734045999
• 991413572477397201 is a deficient number, because the sum of its proper divisors (610881304734045999) is less than itself. Its deficiency is 380532267743351202

Bases of 991413572477397201

• Binary: 110111000010001101010110010000110101000001000010100011010001₂
• Hexadecimal: 0xDC23564350428D1
• Base-36: 7J5US3ND5PE9

Squares and roots of 991413572477397201

• 991413572477397201 squared (991413572477397201²) is 982900871692395312840332031522634401
• 991413572477397201 cubed (991413572477397201³) is 974461264595705447345500700373365442105039803183711601
• The square root of 991413572477397201 is 995697530.6173040825
• The cube root of 991413572477397201 is 997129.6263305091

Scales and comparisons

• 991,413,572,477,397,201 seconds is equal to 31,523,884,961 years, 13 weeks, 19 hours, 13 minutes, 21 seconds.
• To count from 1 to 991,413,572,477,397,201 would take you about ninety-four billion, five hundred seventy-one million, six hundred fifty-four thousand, eight hundred eighty-three 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 991413572477397201 cubic inches would be around 83094.1 feet tall.

Recreational maths with 991413572477397201

• 991413572477397201 backwards is 102793774275314199
• The number of decimal digits it has is: 18
• The sum of 991413572477397201's digits is 81
• More coming soon!