30247128

Names of 30247128

• Cardinal: 30247128 can be written as Thirty million, two hundred forty-seven thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 3.0247128 × 10⁷

Factors of 30247128

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 839

Divisors of 30247128

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 233 466 601 699 932 1202 1398 1803 1864 2097 2404 2796 3606 4194 4808 5409 5592 6291 7212 8388 10818 12582 14424 16227 16776 21636 25164 32454 43272 50328 64908 129816 140033 280066 420099 560132 840198 1120264 1260297 1680396 2520594 3360792 3780891 5041188 7561782 10082376 15123564 30247128
• Sum of all divisors σ(n): 84520800
• Sum of proper divisors (its aliquot sum) s(n): 54273672
• 30247128 is an abundant number, because the sum of its proper divisors (54273672) is greater than itself. Its abundance is 24026544

Bases of 30247128

• Binary: 1110011011000100011011000₂
• Hexadecimal: 0x1CD88D8
• Base-36: I0AU0

Squares and roots of 30247128

• 30247128 squared (30247128²) is 914888752248384
• 30247128 cubed (30247128³) is 27672757195017158641152
• The square root of 30247128 is 5499.7389028935
• The cube root of 30247128 is 311.5741230887

Scales and comparisons

• 30,247,128 seconds is equal to 50 weeks, 1 hour, 58 minutes, 48 seconds.
• To count from 1 to 30,247,128 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 30247128 cubic inches would be around 26 feet tall.

Recreational maths with 30247128

• 30247128 backwards is 82174203
• 30247128 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30247128's digits is 27
• More coming soon!