13406640

Names of 13406640

• Cardinal: 13406640 can be written as Thirteen million, four hundred six thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.340664 × 10⁷

Factors of 13406640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 4320

Divisors of 13406640

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 39 40 48 52 60 65 78 80 104 120 130 156 195 208 240 260 312 390 520 624 780 1040 1560 3120 4297 8594 12891 17188 21485 25782 34376 42970 51564 55861 64455 68752 85940 103128 111722 128910 167583 171880 206256 223444 257820 279305 335166 343760 446888 515640 558610 670332 837915 893776 1031280 1117220 1340664 1675830 2234440 2681328 3351660 4468880 6703320 13406640
• Sum of all divisors σ(n): 44767968
• Sum of proper divisors (its aliquot sum) s(n): 31361328
• 13406640 is an abundant number, because the sum of its proper divisors (31361328) is greater than itself. Its abundance is 17954688

Bases of 13406640

• Binary: 110011001001000110110000₂
• Hexadecimal: 0xCC91B0
• Base-36: 7ZCMO

Squares and roots of 13406640

• 13406640 squared (13406640²) is 179737996089600
• 13406640 cubed (13406640³) is 2409682607894674944000
• The square root of 13406640 is 3661.5078861037
• The cube root of 13406640 is 237.5599996147

Scales and comparisons

• 13,406,640 seconds is equal to 22 weeks, 1 day, 4 hours, 4 minutes.
• To count from 1 to 13,406,640 would take you about thirty-three 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 13406640 cubic inches would be around 19.8 feet tall.

Recreational maths with 13406640

• 13406640 backwards is 04660431
• 13406640 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 13406640's digits is 24
• More coming soon!