9990179820

Names of 9990179820

• Cardinal: 9990179820 can be written as Nine billion, nine hundred ninety million, one hundred seventy-nine thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 9.99017982 × 10⁹

Factors of 9990179820

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 500056

Divisors of 9990179820

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 37 45 54 60 74 90 108 111 135 148 180 185 222 270 333 370 444 540 555 666 740 999 1110 1332 1665 1998 2220 3330 3996 4995 6660 9990 19980 500009 1000018 1500027 2000036 2500045 3000054 4500081 5000090 6000108 7500135 9000162 10000180 13500243 15000270 18000324 18500333 22500405 27000486 30000540 37000666 45000810 54000972 55500999 67501215 74001332 90001620 92501665 111001998 135002430 166502997 185003330 222003996 270004860 277504995 333005994 370006660 499508991 555009990 666011988 832514985 999017982 1110019980 1665029970 1998035964 2497544955 3330059940 4995089910 9990179820
• Sum of all divisors σ(n): 31920638400
• Sum of proper divisors (its aliquot sum) s(n): 21930458580
• 9990179820 is an abundant number, because the sum of its proper divisors (21930458580) is greater than itself. Its abundance is 11940278760

Bases of 9990179820

• Binary: 1001010011011101100000101111101100₂
• Hexadecimal: 0x253760BEC
• Base-36: 4L7W830

Squares and roots of 9990179820

• 9990179820 squared (9990179820²) is 99803692835935232400
• 9990179820 cubed (9990179820³) is 997056838131038729549490168000
• The square root of 9990179820 is 99950.8870395855
• The cube root of 9990179820 is 2153.7292278411

Scales and comparisons

• 9,990,179,820 seconds is equal to 317 years, 34 weeks, 1 day, 1 hour, 57 minutes.
• To count from 1 to 9,990,179,820 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 9990179820 cubic inches would be around 179.5 feet tall.

Recreational maths with 9990179820

• 9990179820 backwards is 0289710999
• 9990179820 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 9990179820's digits is 54
• More coming soon!