13089780

Names of 13089780

• Cardinal: 13089780 can be written as Thirteen million, eighty-nine thousand, seven hundred eighty.

Scientific notation

• Scientific notation: 1.308978 × 10⁷

Factors of 13089780

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 622

Divisors of 13089780

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 5 6 9 10 11 12 15 18 20 22 30 33 36 44 45 55 60 66 90 99 110 121 132 165 180 198 220 242 330 363 396 484 495 601 605 660 726 990 1089 1202 1210 1452 1803 1815 1980 2178 2404 2420 3005 3606 3630 4356 5409 5445 6010 6611 7212 7260 9015 10818 10890 12020 13222 18030 19833 21636 21780 26444 27045 33055 36060 39666 54090 59499 66110 72721 79332 99165 108180 118998 132220 145442 198330 218163 237996 290884 297495 363605 396660 436326 594990 654489 727210 872652 1090815 1189980 1308978 1454420 2181630 2617956 3272445 4363260 6544890 13089780
• Sum of all divisors σ(n): 43716036
• Sum of proper divisors (its aliquot sum) s(n): 30626256
• 13089780 is an abundant number, because the sum of its proper divisors (30626256) is greater than itself. Its abundance is 17536476

Bases of 13089780

• Binary: 110001111011101111110100₂
• Hexadecimal: 0xC7BBF4
• Base-36: 7SK50

Squares and roots of 13089780

• 13089780 squared (13089780²) is 171342340448400
• 13089780 cubed (13089780³) is 2242833541154657352000
• The square root of 13089780 is 3617.9800994477
• The cube root of 13089780 is 235.6735167585

Scales and comparisons

• 13,089,780 seconds is equal to 21 weeks, 4 days, 12 hours, 3 minutes.
• To count from 1 to 13,089,780 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 13089780 cubic inches would be around 19.6 feet tall.

Recreational maths with 13089780

• 13089780 backwards is 08798031
• 13089780 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 13089780's digits is 36
• More coming soon!