30718380

Names of 30718380

• Cardinal: 30718380 can be written as Thirty million, seven hundred eighteen thousand, three hundred eighty.

Scientific notation

• Scientific notation: 3.071838 × 10⁷

Factors of 30718380

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 198

Divisors of 30718380

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 10 11 12 14 15 20 21 22 28 30 33 35 42 44 55 60 61 66 70 77 84 105 109 110 122 132 140 154 165 183 210 218 220 231 244 305 308 327 330 366 385 420 427 436 462 545 610 654 660 671 732 763 770 854 915 924 1090 1155 1199 1220 1281 1308 1342 1526 1540 1635 1708 1830 2013 2135 2180 2289 2310 2398 2562 2684 3052 3270 3355 3597 3660 3815 4026 4270 4578 4620 4697 4796 5124 5995 6405 6540 6649 6710 7194 7630 8052 8393 8540 9156 9394 10065 11445 11990 12810 13298 13420 14091 14388 15260 16786 17985 18788 19947 20130 22890 23485 23980 25179 25620 26596 28182 33245 33572 35970 39894 40260 41965 45780 46543 46970 50358 56364 66490 70455 71940 73139 79788 83930 93086 93940 99735 100716 125895 132980 139629 140910 146278 167860 186172 199470 219417 232715 251790 279258 281820 292556 365695 398940 438834 465430 503580 511973 558516 698145 731390 877668 930860 1023946 1097085 1396290 1462780 1535919 2047892 2194170 2559865 2792580 3071838 4388340 5119730 6143676 7679595 10239460 15359190 30718380
• Sum of all divisors σ(n): 109992960
• Sum of proper divisors (its aliquot sum) s(n): 79274580
• 30718380 is an abundant number, because the sum of its proper divisors (79274580) is greater than itself. Its abundance is 48556200

Bases of 30718380

• Binary: 1110101001011100110101100₂
• Hexadecimal: 0x1D4B9AC
• Base-36: IAEGC

Squares and roots of 30718380

• 30718380 squared (30718380²) is 943618869824400
• 30718380 cubed (30718380³) is 28986443018436452472000
• The square root of 30718380 is 5542.4164405067
• The cube root of 30718380 is 313.1839059141

Scales and comparisons

• 30,718,380 seconds is equal to 50 weeks, 5 days, 12 hours, 53 minutes.
• To count from 1 to 30,718,380 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 30718380 cubic inches would be around 26.1 feet tall.

Recreational maths with 30718380

• 30718380 backwards is 08381703
• 30718380 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 30718380's digits is 30
• More coming soon!