30085920

Names of 30085920

• Cardinal: 30085920 can be written as Thirty million, eighty-five thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 3.008592 × 10⁷

Factors of 30085920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1256

Divisors of 30085920

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 17 18 20 24 30 32 34 36 40 45 48 51 60 68 72 80 85 90 96 102 120 136 144 153 160 170 180 204 240 255 272 288 306 340 360 408 480 510 544 612 680 720 765 816 1020 1224 1229 1360 1440 1530 1632 2040 2448 2458 2720 3060 3687 4080 4896 4916 6120 6145 7374 8160 9832 11061 12240 12290 14748 18435 19664 20893 22122 24480 24580 29496 36870 39328 41786 44244 49160 55305 58992 62679 73740 83572 88488 98320 104465 110610 117984 125358 147480 167144 176976 188037 196640 208930 221220 250716 294960 313395 334288 353952 376074 417860 442440 501432 589920 626790 668576 752148 835720 884880 940185 1002864 1253580 1504296 1671440 1769760 1880370 2005728 2507160 3008592 3342880 3760740 5014320 6017184 7521480 10028640 15042960 30085920
• Sum of all divisors σ(n): 108795960
• Sum of proper divisors (its aliquot sum) s(n): 78710040
• 30085920 is an abundant number, because the sum of its proper divisors (78710040) is greater than itself. Its abundance is 48624120

Bases of 30085920

• Binary: 1110010110001001100100000₂
• Hexadecimal: 0x1CB1320
• Base-36: HWUG0

Squares and roots of 30085920

• 30085920 squared (30085920²) is 905162582246400
• 30085920 cubed (30085920³) is 27232649036458610688000
• The square root of 30085920 is 5485.0633542375
• The cube root of 30085920 is 311.0196049855

Scales and comparisons

• 30,085,920 seconds is equal to 49 weeks, 5 days, 5 hours, 12 minutes.
• To count from 1 to 30,085,920 would take you about twenty-two 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 30085920 cubic inches would be around 25.9 feet tall.

Recreational maths with 30085920

• 30085920 backwards is 02958003
• The number of decimal digits it has is: 8
• The sum of 30085920's digits is 27
• More coming soon!