9990157530

Names of 9990157530

• Cardinal: 9990157530 can be written as Nine billion, nine hundred ninety million, one hundred fifty-seven thousand, five hundred thirty.

Scientific notation

• Scientific notation: 9.99015753 × 10⁹

Factors of 9990157530

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 7675

Divisors of 9990157530

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 10 15 30 163 283 326 489 566 815 849 978 1415 1630 1698 2445 2830 4245 4890 7219 8490 14438 21657 36095 43314 46129 72190 92258 108285 138387 216570 230645 276774 461290 691935 1176697 1383870 2042977 2353394 3530091 4085954 5883485 6128931 7060182 10214885 11766970 12257862 17650455 20429770 30644655 35300910 61289310 333005251 666010502 999015753 1665026255 1998031506 3330052510 4995078765 9990157530
• Sum of all divisors σ(n): 24212067840
• Sum of proper divisors (its aliquot sum) s(n): 14221910310
• 9990157530 is an abundant number, because the sum of its proper divisors (14221910310) is greater than itself. Its abundance is 4231752780

Bases of 9990157530

• Binary: 1001010011011101011011010011011010₂
• Hexadecimal: 0x25375B4DA
• Base-36: 4L7VQVU

Squares and roots of 9990157530

• 9990157530 squared (9990157530²) is 99803247474215700900
• 9990157530 cubed (9990157530³) is 997050164272989465190362777000
• The square root of 9990157530 is 99950.7755347601
• The cube root of 9990157530 is 2153.7276260457

Scales and comparisons

• 9,990,157,530 seconds is equal to 317 years, 34 weeks, 19 hours, 45 minutes, 30 seconds.
• To count from 1 to 9,990,157,530 would take you about six hundred thirty-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 9990157530 cubic inches would be around 179.5 feet tall.

Recreational maths with 9990157530

• 9990157530 backwards is 0357510999
• The number of decimal digits it has is: 10
• The sum of 9990157530's digits is 48
• More coming soon!