13256040

Names of 13256040

• Cardinal: 13256040 can be written as Thirteen million, two hundred fifty-six thousand and forty.

Scientific notation

• Scientific notation: 1.325604 × 10⁷

Factors of 13256040

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 427

Divisors of 13256040

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 43 56 60 70 84 86 105 120 129 140 168 172 210 215 258 280 301 344 367 420 430 516 602 645 734 840 860 903 1032 1101 1204 1290 1468 1505 1720 1806 1835 2202 2408 2569 2580 2936 3010 3612 3670 4404 4515 5138 5160 5505 6020 7224 7340 7707 8808 9030 10276 11010 12040 12845 14680 15414 15781 18060 20552 22020 25690 30828 31562 36120 38535 44040 47343 51380 61656 63124 77070 78905 94686 102760 110467 126248 154140 157810 189372 220934 236715 308280 315620 331401 378744 441868 473430 552335 631240 662802 883736 946860 1104670 1325604 1657005 1893720 2209340 2651208 3314010 4418680 6628020 13256040
• Sum of all divisors σ(n): 46632960
• Sum of proper divisors (its aliquot sum) s(n): 33376920
• 13256040 is an abundant number, because the sum of its proper divisors (33376920) is greater than itself. Its abundance is 20120880

Bases of 13256040

• Binary: 110010100100010101101000₂
• Hexadecimal: 0xCA4568
• Base-36: 7W4FC

Squares and roots of 13256040

• 13256040 squared (13256040²) is 175722596481600
• 13256040 cubed (13256040³) is 2329385767863948864000
• The square root of 13256040 is 3640.8845079183
• The cube root of 13256040 is 236.6671251287

Scales and comparisons

• 13,256,040 seconds is equal to 21 weeks, 6 days, 10 hours, 14 minutes.
• To count from 1 to 13,256,040 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 13256040 cubic inches would be around 19.7 feet tall.

Recreational maths with 13256040

• 13256040 backwards is 04065231
• 13256040 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 13256040's digits is 21
• More coming soon!