30380238

Names of 30380238

• Cardinal: 30380238 can be written as Thirty million, three hundred eighty thousand, two hundred thirty-eight.

Scientific notation

• Scientific notation: 3.0380238 × 10⁷

Factors of 30380238

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 640

Divisors of 30380238

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 27 42 54 63 126 179 189 358 378 449 537 898 1074 1253 1347 1611 2506 2694 3143 3222 3759 4041 4833 6286 7518 8082 9429 9666 11277 12123 18858 22554 24246 28287 33831 56574 67662 80371 84861 160742 169722 241113 482226 562597 723339 1125194 1446678 1687791 2170017 3375582 4340034 5063373 10126746 15190119 30380238
• Sum of all divisors σ(n): 77760000
• Sum of proper divisors (its aliquot sum) s(n): 47379762
• 30380238 is an abundant number, because the sum of its proper divisors (47379762) is greater than itself. Its abundance is 16999524

Bases of 30380238

• Binary: 1110011111001000011001110₂
• Hexadecimal: 0x1CF90CE
• Base-36: I35JI

Squares and roots of 30380238

• 30380238 squared (30380238²) is 922958860936644
• 30380238 cubed (30380238³) is 28039709859464147641272
• The square root of 30380238 is 5511.8271017875
• The cube root of 30380238 is 312.0305073719

Scales and comparisons

• 30,380,238 seconds is equal to 50 weeks, 1 day, 14 hours, 57 minutes, 18 seconds.
• To count from 1 to 30,380,238 would take you about twenty-three 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 30380238 cubic inches would be around 26 feet tall.

Recreational maths with 30380238

• 30380238 backwards is 83208303
• 30380238 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30380238's digits is 27
• More coming soon!