30388980

Names of 30388980

• Cardinal: 30388980 can be written as Thirty million, three hundred eighty-eight thousand, nine hundred eighty.

Scientific notation

• Scientific notation: 3.038898 × 10⁷

Factors of 30388980

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 113

Divisors of 30388980

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 19 20 23 30 38 46 57 60 61 69 76 92 95 114 115 122 138 183 190 228 230 244 276 285 305 345 361 366 380 437 460 570 610 690 722 732 874 915 1083 1140 1159 1220 1311 1380 1403 1444 1748 1805 1830 2166 2185 2318 2622 2806 3477 3610 3660 4209 4332 4370 4636 5244 5415 5612 5795 6555 6954 7015 7220 8303 8418 8740 10830 11590 13110 13908 14030 16606 16836 17385 21045 21660 22021 23180 24909 26220 26657 28060 33212 34770 41515 42090 44042 49818 53314 66063 69540 79971 83030 84180 88084 99636 106628 110105 124545 132126 133285 159942 166060 220210 249090 264252 266570 319884 330315 399855 440420 498180 506483 533140 660630 799710 1012966 1321260 1519449 1599420 2025932 2532415 3038898 5064830 6077796 7597245 10129660 15194490 30388980
• Sum of all divisors σ(n): 95243904
• Sum of proper divisors (its aliquot sum) s(n): 64854924
• 30388980 is an abundant number, because the sum of its proper divisors (64854924) is greater than itself. Its abundance is 34465944

Bases of 30388980

• Binary: 1110011111011001011110100₂
• Hexadecimal: 0x1CFB2F4
• Base-36: I3CAC

Squares and roots of 30388980

• 30388980 squared (30388980²) is 923490105440400
• 30388980 cubed (30388980³) is 28063922344426206792000
• The square root of 30388980 is 5512.6200667197
• The cube root of 30388980 is 312.0604337241

Scales and comparisons

• 30,388,980 seconds is equal to 50 weeks, 1 day, 17 hours, 23 minutes.
• To count from 1 to 30,388,980 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 30388980 cubic inches would be around 26 feet tall.

Recreational maths with 30388980

• 30388980 backwards is 08988303
• The number of decimal digits it has is: 8
• The sum of 30388980's digits is 39
• More coming soon!