30509730

Names of 30509730

• Cardinal: 30509730 can be written as Thirty million, five hundred nine thousand, seven hundred thirty.

Scientific notation

• Scientific notation: 3.050973 × 10⁷

Factors of 30509730

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 50

Divisors of 30509730

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 5 6 9 10 15 17 18 23 27 30 34 45 46 51 54 69 85 90 102 115 135 138 153 170 207 230 255 270 289 306 345 391 414 459 510 578 621 690 765 782 867 918 1035 1173 1242 1445 1530 1734 1955 2070 2295 2346 2601 2890 3105 3519 3910 4335 4590 4913 5202 5865 6210 6647 7038 7803 8670 9826 10557 11730 13005 13294 14739 15606 17595 19941 21114 24565 26010 29478 33235 35190 39015 39882 44217 49130 52785 59823 66470 73695 78030 88434 99705 105570 112999 119646 132651 147390 179469 199410 221085 225998 265302 299115 338997 358938 442170 564995 598230 663255 677994 897345 1016991 1129990 1326510 1694985 1794690 2033982 3050973 3389970 5084955 6101946 10169910 15254865 30509730
• Sum of all divisors σ(n): 90201600
• Sum of proper divisors (its aliquot sum) s(n): 59691870
• 30509730 is an abundant number, because the sum of its proper divisors (59691870) is greater than itself. Its abundance is 29182140

Bases of 30509730

• Binary: 1110100011000101010100010₂
• Hexadecimal: 0x1D18AA2
• Base-36: I5XGI

Squares and roots of 30509730

• 30509730 squared (30509730²) is 930843624672900
• 30509730 cubed (30509730³) is 28399787660991517317000
• The square root of 30509730 is 5523.5613511575
• The cube root of 30509730 is 312.4732094367

Scales and comparisons

• 30,509,730 seconds is equal to 50 weeks, 3 days, 2 hours, 55 minutes, 30 seconds.
• To count from 1 to 30,509,730 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 30509730 cubic inches would be around 26 feet tall.

Recreational maths with 30509730

• 30509730 backwards is 03790503
• 30509730 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30509730's digits is 27
• More coming soon!