1988974200738889

Names of 1988974200738889

• Cardinal: 1988974200738889 can be written as One quadrillion, nine hundred eighty-eight trillion, nine hundred seventy-four billion, two hundred million, seven hundred thirty-eight thousand, eight hundred eighty-nine.

Scientific notation

• Scientific notation: 1.988974200738889 × 10¹⁵

Factors of 1988974200738889

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 37719

Divisors of 1988974200738889

• Number of divisors d(n): 45
• Complete list of divisors:
  1 7 13 49 91 169 637 1183 2197 8281 15379 28561 37699 107653 199927 263893 490087 1399489 1847251 3430609 6371131 24014263 44597917 82824703 312185419 579772921 1076721139 1421214601 4058410447 7537047973 9948502207 18475789813 52759335811 69639515449 129330528691 240185267569 905313700837 1681296872983 3122408478397 11769078110881 21856859348779 40591310219161 152998015441453 284139171534127 1988974200738889
• Sum of all divisors σ(n): 2506573144378737
• Sum of proper divisors (its aliquot sum) s(n): 517598943639848
• 1988974200738889 is a deficient number, because the sum of its proper divisors (517598943639848) is less than itself. Its deficiency is 1471375257099041

Bases of 1988974200738889

• Binary: 111000100001111011000100100101100111101010001001001₂
• Hexadecimal: 0x710F624B3D449
• Base-36: JL164TBSY1

Squares and roots of 1988974200738889

• 1988974200738889 squared (1988974200738889²) is 3956018371204902315873556954321
• 1988974200738889 cubed (1988974200738889³) is 7868418477975632078073974311648544142621289369
• 1988974200738889 is a perfect square number. Its square root is 44597917
• The cube root of 1988974200738889 is 125760.1509430443

Scales and comparisons

• 1,988,974,200,738,889 seconds is equal to 63,243,227 years, 14 weeks, 4 days, 18 hours, 34 minutes, 49 seconds.
• To count from 1 to 1,988,974,200,738,889 would take you about one hundred eighty-nine million, seven hundred twenty-nine thousand, six hundred eighty-one 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 1988974200738889 cubic inches would be around 10480 feet tall.

Recreational maths with 1988974200738889

• 1988974200738889 backwards is 9888370024798891
• 1988974200738889 is a Harshad number.
• The number of decimal digits it has is: 16
• The sum of 1988974200738889's digits is 91
• More coming soon!