30109890

Names of 30109890

• Cardinal: 30109890 can be written as Thirty million, one hundred nine thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 3.010989 × 10⁷

Factors of 30109890

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1443

Divisors of 30109890

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 10 15 17 30 34 43 51 85 86 102 129 170 215 255 258 430 510 645 731 1290 1373 1462 2193 2746 3655 4119 4386 6865 7310 8238 10965 13730 20595 21930 23341 41190 46682 59039 70023 116705 118078 140046 177117 233410 295195 350115 354234 590390 700230 885585 1003663 1771170 2007326 3010989 5018315 6021978 10036630 15054945 30109890
• Sum of all divisors σ(n): 78350976
• Sum of proper divisors (its aliquot sum) s(n): 48241086
• 30109890 is an abundant number, because the sum of its proper divisors (48241086) is greater than itself. Its abundance is 18131196

Bases of 30109890

• Binary: 1110010110111000011000010₂
• Hexadecimal: 0x1CB70C2
• Base-36: HXCXU

Squares and roots of 30109890

• 30109890 squared (30109890²) is 906605475812100
• 30109890 cubed (30109890³) is 27297791150099991669000
• The square root of 30109890 is 5487.2479440973
• The cube root of 30109890 is 311.1021813857

Scales and comparisons

• 30,109,890 seconds is equal to 49 weeks, 5 days, 11 hours, 51 minutes, 30 seconds.
• To count from 1 to 30,109,890 would take you about twenty-two 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 30109890 cubic inches would be around 25.9 feet tall.

Recreational maths with 30109890

• 30109890 backwards is 09890103
• 30109890 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30109890's digits is 30
• More coming soon!