30607990

Names of 30607990

• Cardinal: 30607990 can be written as Thirty million, six hundred seven thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 3.060799 × 10⁷

Factors of 30607990

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 120

Divisors of 30607990

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 5 7 10 14 17 34 35 70 85 89 119 170 178 238 289 445 578 595 623 890 1190 1246 1445 1513 2023 2890 3026 3115 4046 4913 6230 7565 9826 10115 10591 15130 20230 21182 24565 25721 34391 49130 51442 52955 68782 105910 128605 171955 180047 257210 343910 360094 437257 874514 900235 1800470 2186285 3060799 4372570 6121598 15303995 30607990
• Sum of all divisors σ(n): 67651200
• Sum of proper divisors (its aliquot sum) s(n): 37043210
• 30607990 is an abundant number, because the sum of its proper divisors (37043210) is greater than itself. Its abundance is 6435220

Bases of 30607990

• Binary: 1110100110000101001110110₂
• Hexadecimal: 0x1D30A76
• Base-36: I819Y

Squares and roots of 30607990

• 30607990 squared (30607990²) is 936849051840100
• 30607990 cubed (30607990³) is 28675066410231262399000
• The square root of 30607990 is 5532.4488248875
• The cube root of 30607990 is 312.8083016069

Scales and comparisons

• 30,607,990 seconds is equal to 50 weeks, 4 days, 6 hours, 13 minutes, 10 seconds.
• To count from 1 to 30,607,990 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 30607990 cubic inches would be around 26.1 feet tall.

Recreational maths with 30607990

• 30607990 backwards is 09970603
• 30607990 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30607990's digits is 34
• More coming soon!