16403940

Names of 16403940

• Cardinal: 16403940 can be written as Sixteen million, four hundred three thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.640394 × 10⁷

Factors of 16403940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 341

Divisors of 16403940

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 47 60 63 70 84 90 94 105 126 140 141 180 188 210 235 252 277 282 315 329 420 423 470 554 564 630 658 705 831 846 940 987 1108 1260 1316 1385 1410 1645 1662 1692 1939 1974 2115 2493 2770 2820 2961 3290 3324 3878 3948 4155 4230 4935 4986 5540 5817 5922 6580 7756 8310 8460 9695 9870 9972 11634 11844 12465 13019 14805 16620 17451 19390 19740 23268 24930 26038 29085 29610 34902 38780 39057 49860 52076 58170 59220 65095 69804 78114 87255 91133 116340 117171 130190 156228 174510 182266 195285 234342 260380 273399 349020 364532 390570 455665 468684 546798 585855 781140 820197 911330 1093596 1171710 1366995 1640394 1822660 2343420 2733990 3280788 4100985 5467980 8201970 16403940
• Sum of all divisors σ(n): 58286592
• Sum of proper divisors (its aliquot sum) s(n): 41882652
• 16403940 is an abundant number, because the sum of its proper divisors (41882652) is greater than itself. Its abundance is 25478712

Bases of 16403940

• Binary: 111110100100110111100100₂
• Hexadecimal: 0xFA4DE4
• Base-36: 9RLD0

Squares and roots of 16403940

• 16403940 squared (16403940²) is 269089247523600
• 16403940 cubed (16403940³) is 4414123871022282984000
• The square root of 16403940 is 4050.1777738761
• The cube root of 16403940 is 254.0871629267

Scales and comparisons

• 16,403,940 seconds is equal to 27 weeks, 20 hours, 39 minutes.
• To count from 1 to 16,403,940 would take you about forty 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 16403940 cubic inches would be around 21.2 feet tall.

Recreational maths with 16403940

• 16403940 backwards is 04930461
• The number of decimal digits it has is: 8
• The sum of 16403940's digits is 27
• More coming soon!