138380508

Names of 138380508

• Cardinal: 138380508 can be written as One hundred thirty-eight million, three hundred eighty thousand, five hundred eight.

Scientific notation

• Scientific notation: 1.38380508 × 10⁸

Factors of 138380508

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 422

Divisors of 138380508

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 49 54 63 79 84 98 108 126 147 158 189 196 237 252 294 316 331 378 441 474 553 588 662 711 756 882 948 993 1106 1323 1324 1422 1659 1764 1986 2133 2212 2317 2646 2844 2979 3318 3871 3972 4266 4634 4977 5292 5958 6636 6951 7742 8532 8937 9268 9954 11613 11916 13902 14931 15484 16219 17874 19908 20853 23226 26149 27804 29862 32438 34839 35748 41706 46452 48657 52298 59724 62559 64876 69678 78447 83412 97314 104517 104596 125118 139356 145971 156894 183043 194628 209034 235341 250236 291942 313788 366086 418068 437913 470682 549129 583884 706023 732172 875826 941364 1098258 1281301 1412046 1647387 1751652 2196516 2562602 2824092 3294774 3843903 4942161 5125204 6589548 7687806 9884322 11531709 15375612 19768644 23063418 34595127 46126836 69190254 138380508
• Sum of all divisors σ(n): 423897600
• Sum of proper divisors (its aliquot sum) s(n): 285517092
• 138380508 is an abundant number, because the sum of its proper divisors (285517092) is greater than itself. Its abundance is 147136584

Bases of 138380508

• Binary: 1000001111111000010011011100₂
• Hexadecimal: 0x83F84DC
• Base-36: 2ADZ30

Squares and roots of 138380508

• 138380508 squared (138380508²) is 19149164994338064
• 138380508 cubed (138380508³) is 2649871179692318420056512
• The square root of 138380508 is 11763.5244718579
• The cube root of 138380508 is 517.2394487597

Scales and comparisons

• 138,380,508 seconds is equal to 4 years, 20 weeks, 5 days, 15 hours, 1 minute, 48 seconds.
• To count from 1 to 138,380,508 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 138380508 cubic inches would be around 43.1 feet tall.

Recreational maths with 138380508

• 138380508 backwards is 805083831
• 138380508 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 138380508's digits is 36
• More coming soon!