1388493513

Names of 1388493513

• Cardinal: 1388493513 can be written as One billion, three hundred eighty-eight million, four hundred ninety-three thousand, five hundred thirteen.

Scientific notation

• Scientific notation: 1.388493513 × 10⁹

Factors of 1388493513

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 629

Divisors of 1388493513

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 9 11 17 33 51 99 121 153 179 187 363 419 537 561 1089 1257 1611 1683 1969 2057 3043 3771 4609 5907 6171 7123 9129 13827 17721 18513 21369 21659 27387 33473 41481 50699 64107 64977 75001 78353 100419 152097 194931 225003 235059 301257 368203 456291 675009 705177 825011 861883 1104609 1275017 2475033 2585649 3313827 3825051 7425099 7756947 9075121 11475153 14025187 27225363 42075561 81676089 126226683 154277057 462831171 1388493513
• Sum of all divisors σ(n): 2352823200
• Sum of proper divisors (its aliquot sum) s(n): 964329687
• 1388493513 is a deficient number, because the sum of its proper divisors (964329687) is less than itself. Its deficiency is 424163826

Bases of 1388493513

• Binary: 1010010110000101011101011001001₂
• Hexadecimal: 0x52C2BAC9
• Base-36: MYO8G9

Squares and roots of 1388493513

• 1388493513 squared (1388493513²) is 1927914235643081169
• 1388493513 cubed (1388493513³) is 2676896409810771586488956697
• The square root of 1388493513 is 37262.4947232469
• The cube root of 1388493513 is 1115.6157023635

Scales and comparisons

• 1,388,493,513 seconds is equal to 44 years, 7 weeks, 5 days, 12 hours, 38 minutes, 33 seconds.
• To count from 1 to 1,388,493,513 would take you about eighty-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 1388493513 cubic inches would be around 93 feet tall.

Recreational maths with 1388493513

• 1388493513 backwards is 3153948831
• The number of decimal digits it has is: 10
• The sum of 1388493513's digits is 45
• More coming soon!