30857216

Names of 30857216

• Cardinal: 30857216 can be written as Thirty million, eight hundred fifty-seven thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 3.0857216 × 10⁷

Factors of 30857216

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 95

Divisors of 30857216

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 8 13 16 19 26 32 38 52 61 64 76 104 122 128 152 208 244 247 256 304 416 488 494 512 608 793 832 976 988 1024 1159 1216 1586 1664 1952 1976 2048 2318 2432 3172 3328 3904 3952 4636 4864 6344 6656 7808 7904 9272 9728 12688 13312 15067 15616 15808 18544 19456 25376 26624 30134 31232 31616 37088 38912 50752 60268 62464 63232 74176 101504 120536 124928 126464 148352 203008 241072 252928 296704 406016 482144 505856 593408 812032 964288 1186816 1624064 1928576 2373632 3857152 7714304 15428608 30857216
• Sum of all divisors σ(n): 71089200
• Sum of proper divisors (its aliquot sum) s(n): 40231984
• 30857216 is an abundant number, because the sum of its proper divisors (40231984) is greater than itself. Its abundance is 9374768

Bases of 30857216

• Binary: 1110101101101100000000000₂
• Hexadecimal: 0x1D6D800
• Base-36: IDDKW

Squares and roots of 30857216

• 30857216 squared (30857216²) is 952167779270656
• 30857216 cubed (30857216³) is 29381246833194954653696
• The square root of 30857216 is 5554.9271822411
• The cube root of 30857216 is 313.6550229707

Scales and comparisons

• 30,857,216 seconds is equal to 51 weeks, 3 hours, 26 minutes, 56 seconds.
• To count from 1 to 30,857,216 would take you about twenty-four 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 30857216 cubic inches would be around 26.1 feet tall.

Recreational maths with 30857216

• 30857216 backwards is 61275803
• 30857216 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30857216's digits is 32
• More coming soon!