138999564

Names of 138999564

• Cardinal: 138999564 can be written as One hundred thirty-eight million, nine hundred ninety-nine thousand, five hundred sixty-four.

Scientific notation

• Scientific notation: 1.38999564 × 10⁸

Factors of 138999564

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 966

Divisors of 138999564

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 9 11 12 18 22 27 33 36 43 44 54 66 81 86 99 108 129 132 162 172 198 258 297 324 387 396 473 516 594 774 891 907 946 1161 1188 1419 1548 1782 1814 1892 2322 2721 2838 3483 3564 3628 4257 4644 5442 5676 6966 8163 8514 9977 10884 12771 13932 16326 17028 19954 24489 25542 29931 32652 38313 39001 39908 48978 51084 59862 73467 76626 78002 89793 97956 117003 119724 146934 153252 156004 179586 234006 269379 293868 351009 359172 429011 468012 538758 702018 808137 858022 1053027 1077516 1287033 1404036 1616274 1716044 2106054 2574066 3159081 3232548 3861099 4212108 5148132 6318162 7722198 11583297 12636324 15444396 23166594 34749891 46333188 69499782 138999564
• Sum of all divisors σ(n): 406072128
• Sum of proper divisors (its aliquot sum) s(n): 267072564
• 138999564 is an abundant number, because the sum of its proper divisors (267072564) is greater than itself. Its abundance is 128073000

Bases of 138999564

• Binary: 1000010010001111011100001100₂
• Hexadecimal: 0x848F70C
• Base-36: 2AR8R0

Squares and roots of 138999564

• 138999564 squared (138999564²) is 19320878792190096
• 138999564 cubed (138999564³) is 2685593728211269949118144
• The square root of 138999564 is 11789.8076320185
• The cube root of 138999564 is 518.0096051249

Scales and comparisons

• 138,999,564 seconds is equal to 4 years, 21 weeks, 5 days, 18 hours, 59 minutes, 24 seconds.
• To count from 1 to 138,999,564 would take you about six 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 138999564 cubic inches would be around 43.2 feet tall.

Recreational maths with 138999564

• 138999564 backwards is 465999831
• 138999564 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 138999564's digits is 54
• More coming soon!