30572820

Names of 30572820

• Cardinal: 30572820 can be written as Thirty million, five hundred seventy-two thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 3.057282 × 10⁷

Factors of 30572820

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 5520

Divisors of 30572820

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 30 31 36 45 60 62 90 93 124 155 180 186 279 310 372 465 558 620 930 1116 1395 1860 2790 5479 5580 10958 16437 21916 27395 32874 49311 54790 65748 82185 98622 109580 164370 169849 197244 246555 328740 339698 493110 509547 679396 849245 986220 1019094 1528641 1698490 2038188 2547735 3057282 3396980 5095470 6114564 7643205 10190940 15286410 30572820
• Sum of all divisors σ(n): 95746560
• Sum of proper divisors (its aliquot sum) s(n): 65173740
• 30572820 is an abundant number, because the sum of its proper divisors (65173740) is greater than itself. Its abundance is 34600920

Bases of 30572820

• Binary: 1110100101000000100010100₂
• Hexadecimal: 0x1D28114
• Base-36: I7A50

Squares and roots of 30572820

• 30572820 squared (30572820²) is 934697322752400
• 30572820 cubed (30572820³) is 28576333002991029768000
• The square root of 30572820 is 5529.2693911583
• The cube root of 30572820 is 312.6884452733

Scales and comparisons

• 30,572,820 seconds is equal to 50 weeks, 3 days, 20 hours, 27 minutes.
• To count from 1 to 30,572,820 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 30572820 cubic inches would be around 26.1 feet tall.

Recreational maths with 30572820

• 30572820 backwards is 02827503
• The number of decimal digits it has is: 8
• The sum of 30572820's digits is 27
• More coming soon!