30490020

Names of 30490020

• Cardinal: 30490020 can be written as Thirty million, four hundred ninety thousand and twenty.

Scientific notation

• Scientific notation: 3.049002 × 10⁷

Factors of 30490020

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 109

Divisors of 30490020

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 9 10 11 12 15 18 20 22 27 29 30 33 36 44 45 54 55 58 59 60 66 81 87 90 99 108 110 116 118 132 135 145 162 165 174 177 180 198 220 236 261 270 290 295 297 319 324 330 348 354 396 405 435 495 522 531 540 580 590 594 638 649 660 708 783 810 870 885 891 957 990 1044 1062 1180 1188 1276 1298 1305 1485 1566 1593 1595 1620 1711 1740 1770 1782 1914 1947 1980 2124 2349 2596 2610 2655 2871 2970 3132 3186 3190 3245 3422 3540 3564 3828 3894 3915 4455 4698 4779 4785 5133 5220 5310 5742 5841 5940 6372 6380 6490 6844 7788 7830 7965 8555 8613 8910 9396 9558 9570 9735 10266 10620 11484 11682 11745 12980 14355 15399 15660 15930 17110 17226 17523 17820 18821 19116 19140 19470 20532 23364 23490 23895 25665 25839 28710 29205 30798 31860 34220 34452 35046 37642 38940 43065 46197 46980 47790 51330 51678 52569 56463 57420 58410 61596 70092 75284 76995 86130 87615 92394 94105 95580 102660 103356 105138 112926 116820 129195 138591 153990 169389 172260 175230 184788 188210 210276 225852 230985 258390 262845 277182 282315 307980 338778 350460 376420 461970 508167 516780 525690 554364 564630 677556 692955 846945 923940 1016334 1051380 1129260 1385910 1524501 1693890 2032668 2540835 2771820 3049002 3387780 5081670 6098004 7622505 10163340 15245010 30490020
• Sum of all divisors σ(n): 109771200
• Sum of proper divisors (its aliquot sum) s(n): 79281180
• 30490020 is an abundant number, because the sum of its proper divisors (79281180) is greater than itself. Its abundance is 48791160

Bases of 30490020

• Binary: 1110100010011110110100100₂
• Hexadecimal: 0x1D13DA4
• Base-36: I5I90

Squares and roots of 30490020

• 30490020 squared (30490020²) is 929641319600400
• 30490020 cubed (30490020³) is 28344782427442588008000
• The square root of 30490020 is 5521.7768879229
• The cube root of 30490020 is 312.4059066047

Scales and comparisons

• 30,490,020 seconds is equal to 50 weeks, 2 days, 21 hours, 27 minutes.
• To count from 1 to 30,490,020 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 30490020 cubic inches would be around 26 feet tall.

Recreational maths with 30490020

• 30490020 backwards is 02009403
• 30490020 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30490020's digits is 18
• More coming soon!