30121707

Names of 30121707

• Cardinal: 30121707 can be written as Thirty million, one hundred twenty-one thousand, seven hundred seven.

Scientific notation

• Scientific notation: 3.0121707 × 10⁷

Factors of 30121707

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 6903

Divisors of 30121707

• Number of divisors d(n): 32
• Complete list of divisors:
  1 3 7 11 19 21 33 57 77 133 209 231 399 627 1463 4389 6863 20589 48041 75493 130397 144123 226479 391191 528451 912779 1434367 1585353 2738337 4303101 10040569 30121707
• Sum of all divisors σ(n): 52715520
• Sum of proper divisors (its aliquot sum) s(n): 22593813
• 30121707 is a deficient number, because the sum of its proper divisors (22593813) is less than itself. Its deficiency is 7527894

Bases of 30121707

• Binary: 1110010111001111011101011₂
• Hexadecimal: 0x1CB9EEB
• Base-36: HXM23

Squares and roots of 30121707

• 30121707 squared (30121707²) is 907317232593849
• 30121707 cubed (30121707³) is 27329943836242769580243
• The square root of 30121707 is 5488.3246077469
• The cube root of 30121707 is 311.1428747001

Scales and comparisons

• 30,121,707 seconds is equal to 49 weeks, 5 days, 15 hours, 8 minutes, 27 seconds.
• To count from 1 to 30,121,707 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 30121707 cubic inches would be around 25.9 feet tall.

Recreational maths with 30121707

• 30121707 backwards is 70712103
• 30121707 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30121707's digits is 21
• More coming soon!