18049680

Names of 18049680

• Cardinal: 18049680 can be written as Eighteen million, forty-nine thousand, six hundred eighty.

Scientific notation

• Scientific notation: 1.804968 × 10⁷

Factors of 18049680

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 117

Divisors of 18049680

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 30 33 36 40 43 44 45 48 53 55 60 66 72 80 86 88 90 99 106 110 120 129 132 144 159 165 172 176 180 198 212 215 220 240 258 264 265 318 330 344 360 387 396 424 430 440 473 477 495 516 528 530 583 636 645 660 688 720 774 792 795 848 860 880 946 954 990 1032 1060 1166 1272 1290 1320 1419 1548 1584 1590 1720 1749 1892 1908 1935 1980 2064 2120 2279 2332 2365 2385 2544 2580 2640 2838 2915 3096 3180 3440 3498 3784 3816 3870 3960 4240 4257 4558 4664 4730 4770 5160 5247 5676 5830 6192 6360 6837 6996 7095 7568 7632 7740 7920 8514 8745 9116 9328 9460 9540 10320 10494 11352 11395 11660 12720 13674 13992 14190 15480 17028 17490 18232 18920 19080 20511 20988 21285 22704 22790 23320 25069 26235 27348 27984 28380 30960 34056 34185 34980 36464 37840 38160 41022 41976 42570 45580 46640 50138 52470 54696 56760 68112 68370 69960 75207 82044 83952 85140 91160 100276 102555 104940 109392 113520 125345 136740 139920 150414 164088 170280 182320 200552 205110 209880 225621 250690 273480 300828 328176 340560 376035 401104 410220 419760 451242 501380 546960 601656 752070 820440 902484 1002760 1128105 1203312 1504140 1640880 1804968 2005520 2256210 3008280 3609936 4512420 6016560 9024840 18049680
• Sum of all divisors σ(n): 68942016
• Sum of proper divisors (its aliquot sum) s(n): 50892336
• 18049680 is an abundant number, because the sum of its proper divisors (50892336) is greater than itself. Its abundance is 32842656

Bases of 18049680

• Binary: 1000100110110101010010000₂
• Hexadecimal: 0x1136A90
• Base-36: AQV80

Squares and roots of 18049680

• 18049680 squared (18049680²) is 325790948102400
• 18049680 cubed (18049680³) is 5880422360144927232000
• The square root of 18049680 is 4248.4914969905
• The cube root of 18049680 is 262.3150261489

Scales and comparisons

• 18,049,680 seconds is equal to 29 weeks, 5 days, 21 hours, 48 minutes.
• To count from 1 to 18,049,680 would take you about forty-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 18049680 cubic inches would be around 21.9 feet tall.

Recreational maths with 18049680

• 18049680 backwards is 08694081
• 18049680 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 18049680's digits is 36
• More coming soon!