18004428

Names of 18004428

• Cardinal: 18004428 can be written as Eighteen million, four thousand, four hundred twenty-eight.

Scientific notation

• Scientific notation: 1.8004428 × 10⁷

Factors of 18004428

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 139

Divisors of 18004428

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 9 12 13 17 18 26 31 34 36 39 51 52 62 68 73 78 93 102 117 124 146 153 156 186 204 219 221 234 279 292 306 372 403 438 442 468 527 558 612 657 663 806 876 884 949 1054 1116 1209 1241 1314 1326 1581 1612 1898 1989 2108 2263 2418 2482 2628 2652 2847 3162 3627 3723 3796 3978 4526 4743 4836 4964 5694 6324 6789 6851 7254 7446 7956 8541 9052 9486 11169 11388 13578 13702 14508 14892 16133 17082 18972 20367 20553 22338 27156 27404 29419 32266 34164 38471 40734 41106 44676 48399 58838 61659 64532 76942 81468 82212 88257 96798 115413 117676 123318 145197 153884 176514 193596 230826 246636 264771 290394 346239 353028 461652 500123 529542 580788 692478 1000246 1059084 1384956 1500369 2000492 3000738 4501107 6001476 9002214 18004428
• Sum of all divisors σ(n): 54302976
• Sum of proper divisors (its aliquot sum) s(n): 36298548
• 18004428 is an abundant number, because the sum of its proper divisors (36298548) is greater than itself. Its abundance is 18294120

Bases of 18004428

• Binary: 1000100101011100111001100₂
• Hexadecimal: 0x112B9CC
• Base-36: APWB0

Squares and roots of 18004428

• 18004428 squared (18004428²) is 324159427607184
• 18004428 cubed (18004428³) is 5836305074874756610752
• The square root of 18004428 is 4243.1624998343
• The cube root of 18004428 is 262.0956277383

Scales and comparisons

• 18,004,428 seconds is equal to 29 weeks, 5 days, 9 hours, 13 minutes, 48 seconds.
• To count from 1 to 18,004,428 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 18004428 cubic inches would be around 21.8 feet tall.

Recreational maths with 18004428

• 18004428 backwards is 82440081
• The number of decimal digits it has is: 8
• The sum of 18004428's digits is 27
• More coming soon!