30380940

Names of 30380940

• Cardinal: 30380940 can be written as Thirty million, three hundred eighty thousand, nine hundred forty.

Scientific notation

• Scientific notation: 3.038094 × 10⁷

Factors of 30380940

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 580

Divisors of 30380940

• 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 45 54 60 90 108 127 135 180 254 270 381 443 508 540 635 762 886 1143 1270 1329 1524 1772 1905 2215 2286 2540 2658 3429 3810 3987 4430 4572 5316 5715 6645 6858 7620 7974 8860 11430 11961 13290 13716 15948 17145 19935 22860 23922 26580 34290 39870 47844 56261 59805 68580 79740 112522 119610 168783 225044 239220 281305 337566 506349 562610 675132 843915 1012698 1125220 1519047 1687830 2025396 2531745 3038094 3375660 5063490 6076188 7595235 10126980 15190470 30380940
• Sum of all divisors σ(n): 95477760
• Sum of proper divisors (its aliquot sum) s(n): 65096820
• 30380940 is an abundant number, because the sum of its proper divisors (65096820) is greater than itself. Its abundance is 34715880

Bases of 30380940

• Binary: 1110011111001001110001100₂
• Hexadecimal: 0x1CF938C
• Base-36: I3630

Squares and roots of 30380940

• 30380940 squared (30380940²) is 923001515283600
• 30380940 cubed (30380940³) is 28041653655740134584000
• The square root of 30380940 is 5511.8907826625
• The cube root of 30380940 is 312.0329107295

Scales and comparisons

• 30,380,940 seconds is equal to 50 weeks, 1 day, 15 hours, 9 minutes.
• To count from 1 to 30,380,940 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 30380940 cubic inches would be around 26 feet tall.

Recreational maths with 30380940

• 30380940 backwards is 04908303
• 30380940 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30380940's digits is 27
• More coming soon!