30138075

Names of 30138075

• Cardinal: 30138075 can be written as Thirty million, one hundred thirty-eight thousand and seventy-five.

Scientific notation

• Scientific notation: 3.0138075 × 10⁷

Factors of 30138075

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 60

Divisors of 30138075

• Number of divisors d(n): 108
• Complete list of divisors:
  1 3 5 9 11 15 25 27 33 41 45 55 75 81 99 121 123 135 165 205 225 243 275 297 363 369 405 451 495 605 615 675 825 891 1025 1089 1107 1215 1353 1485 1815 1845 2025 2255 2475 2673 3025 3075 3267 3321 4059 4455 4961 5445 5535 6075 6765 7425 9075 9225 9801 9963 11275 12177 13365 14883 16335 16605 20295 22275 24805 27225 27675 29403 33825 36531 44649 49005 49815 60885 66825 74415 81675 83025 101475 109593 124025 133947 147015 182655 223245 245025 249075 304425 372075 401841 547965 669735 735075 913275 1116225 1205523 2009205 2739825 3348675 6027615 10046025 30138075
• Sum of all divisors σ(n): 63032424
• Sum of proper divisors (its aliquot sum) s(n): 32894349
• 30138075 is an abundant number, because the sum of its proper divisors (32894349) is greater than itself. Its abundance is 2756274

Bases of 30138075

• Binary: 1110010111101111011011011₂
• Hexadecimal: 0x1CBDEDB
• Base-36: HXYOR

Squares and roots of 30138075

• 30138075 squared (30138075²) is 908303564705625
• 30138075 cubed (30138075³) is 27374520955865479171875
• The square root of 30138075 is 5489.8155706727
• The cube root of 30138075 is 311.1992223741

Scales and comparisons

• 30,138,075 seconds is equal to 49 weeks, 5 days, 19 hours, 41 minutes, 15 seconds.
• To count from 1 to 30,138,075 would take you about twenty-two weeks!

  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 30138075 cubic inches would be around 25.9 feet tall.

Recreational maths with 30138075

• 30138075 backwards is 57083103
• 30138075 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30138075's digits is 27
• More coming soon!