30681000

Names of 30681000

• Cardinal: 30681000 can be written as Thirty million, six hundred eighty-one thousand.

Scientific notation

• Scientific notation: 3.0681 × 10⁷

Factors of 30681000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 504

Divisors of 30681000

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 25 28 30 35 36 40 42 45 50 56 60 63 70 72 75 84 90 100 105 120 125 126 140 150 168 175 180 200 210 225 250 252 280 300 315 350 360 375 420 450 487 500 504 525 600 630 700 750 840 875 900 974 1000 1050 1125 1260 1400 1461 1500 1575 1750 1800 1948 2100 2250 2435 2520 2625 2922 3000 3150 3409 3500 3896 4200 4383 4500 4870 5250 5844 6300 6818 7000 7305 7875 8766 9000 9740 10227 10500 11688 12175 12600 13636 14610 15750 17045 17532 19480 20454 21000 21915 24350 27272 29220 30681 31500 34090 35064 36525 40908 43830 48700 51135 58440 60875 61362 63000 68180 73050 81816 85225 87660 97400 102270 109575 121750 122724 136360 146100 153405 170450 175320 182625 204540 219150 243500 245448 255675 292200 306810 340900 365250 409080 426125 438300 487000 511350 547875 613620 681800 730500 767025 852250 876600 1022700 1095750 1227240 1278375 1461000 1534050 1704500 2045400 2191500 2556750 3068100 3409000 3835125 4383000 5113500 6136200 7670250 10227000 15340500 30681000
• Sum of all divisors σ(n): 118759680
• Sum of proper divisors (its aliquot sum) s(n): 88078680
• 30681000 is an abundant number, because the sum of its proper divisors (88078680) is greater than itself. Its abundance is 57397680

Bases of 30681000

• Binary: 1110101000010011110101000₂
• Hexadecimal: 0x1D427A8
• Base-36: I9LM0

Squares and roots of 30681000

• 30681000 squared (30681000²) is 941323761000000
• 30681000 cubed (30681000³) is 28880754311241000000000
• The square root of 30681000 is 5539.0432386831
• The cube root of 30681000 is 313.0568205867

Scales and comparisons

• 30,681,000 seconds is equal to 50 weeks, 5 days, 2 hours, 30 minutes.
• To count from 1 to 30,681,000 would take you about twenty-four 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 30681000 cubic inches would be around 26.1 feet tall.

Recreational maths with 30681000

• 30681000 backwards is 00018603
• 30681000 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30681000's digits is 18
• More coming soon!