30908215728

Names of 30908215728

• Cardinal: 30908215728 can be written as Thirty billion, nine hundred eight million, two hundred fifteen thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 3.0908215728 × 10¹⁰

Factors of 30908215728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 16510817

Divisors of 30908215728

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 36 39 48 52 72 78 104 117 144 156 208 234 312 468 624 936 1872 16510799 33021598 49532397 66043196 99064794 132086392 148597191 198129588 214640387 264172784 297194382 396259176 429280774 594388764 643921161 792518352 858561548 1188777528 1287842322 1717123096 1931763483 2377555056 2575684644 3434246192 3863526966 5151369288 7727053932 10302738576 15454107864 30908215728
• Sum of all divisors σ(n): 93153933600
• Sum of proper divisors (its aliquot sum) s(n): 62245717872
• 30908215728 is an abundant number, because the sum of its proper divisors (62245717872) is greater than itself. Its abundance is 31337502144

Bases of 30908215728

• Binary: 11100110010010001011111000110110000₂
• Hexadecimal: 0x73245F1B0
• Base-36: E75YBW0

Squares and roots of 30908215728

• 30908215728 squared (30908215728²) is 955317799488586569984
• 30908215728 cubed (30908215728³) is 29527168635391481778869041508352
• The square root of 30908215728 is 175807.3255811601
• The cube root of 30908215728 is 3138.2772721179

Scales and comparisons

• 30,908,215,728 seconds is equal to 982 years, 40 weeks, 5 days, 23 hours, 28 minutes, 48 seconds.
• To count from 1 to 30,908,215,728 would take you about one thousand, nine hundred sixty-five 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 30908215728 cubic inches would be around 261.5 feet tall.

Recreational maths with 30908215728

• 30908215728 backwards is 82751280903
• The number of decimal digits it has is: 11
• The sum of 30908215728's digits is 45
• More coming soon!