138086775

Names of 138086775

• Cardinal: 138086775 can be written as One hundred thirty-eight million, eighty-six thousand, seven hundred seventy-five.

Scientific notation

• Scientific notation: 1.38086775 × 10⁸

Factors of 138086775

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 161

Divisors of 138086775

• Number of divisors d(n): 120
• Complete list of divisors:
  1 3 5 9 15 19 25 27 37 45 57 75 81 95 97 111 135 171 185 225 285 291 333 405 475 485 513 555 675 703 855 873 925 999 1425 1455 1539 1665 1843 2025 2109 2425 2565 2619 2775 2997 3515 3589 4275 4365 4995 5529 6327 7275 7695 7857 8325 9215 10545 10767 12825 13095 14985 16587 17575 17945 18981 21825 24975 27645 31635 32301 38475 39285 46075 49761 52725 53835 56943 65475 68191 74925 82935 89725 94905 96903 138225 149283 158175 161505 196425 204573 248805 269175 284715 290709 340955 414675 474525 484515 613719 746415 807525 1022865 1244025 1423575 1453545 1704775 1841157 2422575 3068595 3732075 5114325 5523471 7267725 9205785 15342975 27617355 46028925 138086775
• Sum of all divisors σ(n): 279374480
• Sum of proper divisors (its aliquot sum) s(n): 141287705
• 138086775 is an abundant number, because the sum of its proper divisors (141287705) is greater than itself. Its abundance is 3200930

Bases of 138086775

• Binary: 1000001110110000100101110111₂
• Hexadecimal: 0x83B0977
• Base-36: 2A7OFR

Squares and roots of 138086775

• 138086775 squared (138086775²) is 19067957429900625
• 138086775 cubed (138086775³) is 2633032747332265876734375
• The square root of 138086775 is 11751.0329333213
• The cube root of 138086775 is 516.8732172187

Scales and comparisons

• 138,086,775 seconds is equal to 4 years, 20 weeks, 2 days, 5 hours, 26 minutes, 15 seconds.
• To count from 1 to 138,086,775 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 138086775 cubic inches would be around 43.1 feet tall.

Recreational maths with 138086775

• 138086775 backwards is 577680831
• 138086775 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 138086775's digits is 45
• More coming soon!