13788720

Names of 13788720

• Cardinal: 13788720 can be written as Thirteen million, seven hundred eighty-eight thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.378872 × 10⁷

Factors of 13788720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1762

Divisors of 13788720

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 30 33 36 40 44 45 48 55 60 66 72 80 88 90 99 110 120 132 144 165 176 180 198 220 240 264 330 360 396 440 495 528 660 720 792 880 990 1320 1584 1741 1980 2640 3482 3960 5223 6964 7920 8705 10446 13928 15669 17410 19151 20892 26115 27856 31338 34820 38302 41784 52230 57453 62676 69640 76604 78345 83568 95755 104460 114906 125352 139280 153208 156690 172359 191510 208920 229812 250704 287265 306416 313380 344718 383020 417840 459624 574530 626760 689436 766040 861795 919248 1149060 1253520 1378872 1532080 1723590 2298120 2757744 3447180 4596240 6894360 13788720
• Sum of all divisors σ(n): 50545872
• Sum of proper divisors (its aliquot sum) s(n): 36757152
• 13788720 is an abundant number, because the sum of its proper divisors (36757152) is greater than itself. Its abundance is 22968432

Bases of 13788720

• Binary: 110100100110011000110000₂
• Hexadecimal: 0xD26630
• Base-36: 87JG0

Squares and roots of 13788720

• 13788720 squared (13788720²) is 190128799238400
• 13788720 cubed (13788720³) is 2621632776634510848000
• The square root of 13788720 is 3713.3165768623
• The cube root of 13788720 is 239.7956594033

Scales and comparisons

• 13,788,720 seconds is equal to 22 weeks, 5 days, 14 hours, 12 minutes.
• To count from 1 to 13,788,720 would take you about thirty-four 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 13788720 cubic inches would be around 20 feet tall.

Recreational maths with 13788720

• 13788720 backwards is 02788731
• 13788720 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 13788720's digits is 36
• More coming soon!