13135440

Names of 13135440

• Cardinal: 13135440 can be written as Thirteen million, one hundred thirty-five thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.313544 × 10⁷

Factors of 13135440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 478

Divisors of 13135440

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 229 239 240 458 478 687 717 916 956 1145 1195 1374 1434 1832 1912 2290 2390 2748 2868 3435 3585 3664 3824 4580 4780 5496 5736 6870 7170 9160 9560 10992 11472 13740 14340 18320 19120 27480 28680 54731 54960 57360 109462 164193 218924 273655 328386 437848 547310 656772 820965 875696 1094620 1313544 1641930 2189240 2627088 3283860 4378480 6567720 13135440
• Sum of all divisors σ(n): 41068800
• Sum of proper divisors (its aliquot sum) s(n): 27933360
• 13135440 is an abundant number, because the sum of its proper divisors (27933360) is greater than itself. Its abundance is 14797920

Bases of 13135440

• Binary: 110010000110111001010000₂
• Hexadecimal: 0xC86E50
• Base-36: 7TJDC

Squares and roots of 13135440

• 13135440 squared (13135440²) is 172539783993600
• 13135440 cubed (13135440³) is 2266385980260893184000
• The square root of 13135440 is 3624.2847570245
• The cube root of 13135440 is 235.9472255833

Scales and comparisons

• 13,135,440 seconds is equal to 21 weeks, 5 days, 44 minutes.
• To count from 1 to 13,135,440 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 13135440 cubic inches would be around 19.7 feet tall.

Recreational maths with 13135440

• 13135440 backwards is 04453131
• The number of decimal digits it has is: 8
• The sum of 13135440's digits is 21
• More coming soon!