30514890

Names of 30514890

• Cardinal: 30514890 can be written as Thirty million, five hundred fourteen thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 3.051489 × 10⁷

Factors of 30514890

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 787

Divisors of 30514890

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 331 439 662 878 993 1317 1655 1986 2195 2317 2634 3073 3310 4390 4634 4965 6146 6585 6951 9219 9930 11585 13170 13902 15365 18438 23170 30730 34755 46095 69510 92190 145309 290618 435927 726545 871854 1017163 1453090 2034326 2179635 3051489 4359270 5085815 6102978 10171630 15257445 30514890
• Sum of all divisors σ(n): 84142080
• Sum of proper divisors (its aliquot sum) s(n): 53627190
• 30514890 is an abundant number, because the sum of its proper divisors (53627190) is greater than itself. Its abundance is 23112300

Bases of 30514890

• Binary: 1110100011001111011001010₂
• Hexadecimal: 0x1D19ECA
• Base-36: I61FU

Squares and roots of 30514890

• 30514890 squared (30514890²) is 931158511712100
• 30514890 cubed (30514890³) is 28414199557458443169000
• The square root of 30514890 is 5524.0284213607
• The cube root of 30514890 is 312.4908242639

Scales and comparisons

• 30,514,890 seconds is equal to 50 weeks, 3 days, 4 hours, 21 minutes, 30 seconds.
• To count from 1 to 30,514,890 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 30514890 cubic inches would be around 26 feet tall.

Recreational maths with 30514890

• 30514890 backwards is 09841503
• 30514890 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30514890's digits is 30
• More coming soon!