13147440

Names of 13147440

• Cardinal: 13147440 can be written as Thirteen million, one hundred forty-seven thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.314744 × 10⁷

Factors of 13147440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1928

Divisors of 13147440

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 29 30 40 48 58 60 80 87 116 120 145 174 232 240 290 348 435 464 580 696 870 1160 1392 1740 1889 2320 3480 3778 5667 6960 7556 9445 11334 15112 18890 22668 28335 30224 37780 45336 54781 56670 75560 90672 109562 113340 151120 164343 219124 226680 273905 328686 438248 453360 547810 657372 821715 876496 1095620 1314744 1643430 2191240 2629488 3286860 4382480 6573720 13147440
• Sum of all divisors σ(n): 42184800
• Sum of proper divisors (its aliquot sum) s(n): 29037360
• 13147440 is an abundant number, because the sum of its proper divisors (29037360) is greater than itself. Its abundance is 15889920

Bases of 13147440

• Binary: 110010001001110100110000₂
• Hexadecimal: 0xC89D30
• Base-36: 7TSMO

Squares and roots of 13147440

• 13147440 squared (13147440²) is 172855178553600
• 13147440 cubed (13147440³) is 2272603088722742784000
• The square root of 13147440 is 3625.9398781557
• The cube root of 13147440 is 236.0190542885

Scales and comparisons

• 13,147,440 seconds is equal to 21 weeks, 5 days, 4 hours, 4 minutes.
• To count from 1 to 13,147,440 would take you about thirty-two 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 13147440 cubic inches would be around 19.7 feet tall.

Recreational maths with 13147440

• 13147440 backwards is 04474131
• 13147440 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 13147440's digits is 24
• More coming soon!