30849920

Names of 30849920

• Cardinal: 30849920 can be written as Thirty million, eight hundred forty-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 3.084992 × 10⁷

Factors of 30849920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 128

Divisors of 30849920

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 5 8 10 16 19 20 32 38 40 43 59 64 76 80 86 95 118 128 152 160 172 190 215 236 295 304 320 344 380 430 472 590 608 640 688 760 817 860 944 1121 1180 1216 1376 1520 1634 1720 1888 2242 2360 2432 2537 2752 3040 3268 3440 3776 4085 4484 4720 5074 5504 5605 6080 6536 6880 7552 8170 8968 9440 10148 11210 12160 12685 13072 13760 16340 17936 18880 20296 22420 25370 26144 27520 32680 35872 37760 40592 44840 48203 50740 52288 65360 71744 81184 89680 96406 101480 104576 130720 143488 162368 179360 192812 202960 241015 261440 324736 358720 385624 405920 482030 522880 717440 771248 811840 964060 1542496 1623680 1928120 3084992 3856240 6169984 7712480 15424960 30849920
• Sum of all divisors σ(n): 80784000
• Sum of proper divisors (its aliquot sum) s(n): 49934080
• 30849920 is an abundant number, because the sum of its proper divisors (49934080) is greater than itself. Its abundance is 19084160

Bases of 30849920

• Binary: 1110101101011101110000000₂
• Hexadecimal: 0x1D6BB80
• Base-36: ID7Y8

Squares and roots of 30849920

• 30849920 squared (30849920²) is 951717564006400
• 30849920 cubed (30849920³) is 29360410712192319488000
• The square root of 30849920 is 5554.2704291383
• The cube root of 30849920 is 313.6303004181

Scales and comparisons

• 30,849,920 seconds is equal to 51 weeks, 1 hour, 25 minutes, 20 seconds.
• To count from 1 to 30,849,920 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 30849920 cubic inches would be around 26.1 feet tall.

Recreational maths with 30849920

• 30849920 backwards is 02994803
• The number of decimal digits it has is: 8
• The sum of 30849920's digits is 35
• More coming soon!