18713940

Names of 18713940

• Cardinal: 18713940 can be written as Eighteen million, seven hundred thirteen thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.871394 × 10⁷

Factors of 18713940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2655

Divisors of 18713940

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 14 15 17 20 21 28 30 34 35 42 51 60 68 70 84 85 102 105 119 140 170 204 210 238 255 340 357 420 476 510 595 714 1020 1190 1428 1785 2380 2621 3570 5242 7140 7863 10484 13105 15726 18347 26210 31452 36694 39315 44557 52420 55041 73388 78630 89114 91735 110082 133671 157260 178228 183470 220164 222785 267342 275205 311899 366940 445570 534684 550410 623798 668355 891140 935697 1100820 1247596 1336710 1559495 1871394 2673420 3118990 3742788 4678485 6237980 9356970 18713940
• Sum of all divisors σ(n): 63431424
• Sum of proper divisors (its aliquot sum) s(n): 44717484
• 18713940 is an abundant number, because the sum of its proper divisors (44717484) is greater than itself. Its abundance is 26003544

Bases of 18713940

• Binary: 1000111011000110101010100₂
• Hexadecimal: 0x11D8D54
• Base-36: B53RO

Squares and roots of 18713940

• 18713940 squared (18713940²) is 350211550323600
• 18713940 cubed (18713940³) is 6553837940062830984000
• The square root of 18713940 is 4325.9611648743
• The cube root of 18713940 is 265.4942242529

Scales and comparisons

• 18,713,940 seconds is equal to 30 weeks, 6 days, 14 hours, 19 minutes.
• To count from 1 to 18,713,940 would take you about forty-six 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 18713940 cubic inches would be around 22.1 feet tall.

Recreational maths with 18713940

• 18713940 backwards is 04931781
• The number of decimal digits it has is: 8
• The sum of 18713940's digits is 33
• More coming soon!