13280085

Names of 13280085

• Cardinal: 13280085 can be written as Thirteen million, two hundred eighty thousand and eighty-five.

Scientific notation

• Scientific notation: 1.3280085 × 10⁷

Factors of 13280085

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 98

Divisors of 13280085

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 5 7 9 13 15 21 23 27 35 39 45 47 63 65 69 91 105 115 117 135 141 161 189 195 207 235 273 299 315 329 345 351 423 455 483 585 611 621 705 805 819 897 945 987 1035 1081 1269 1365 1449 1495 1645 1755 1833 2093 2115 2415 2457 2691 2961 3055 3105 3243 4095 4277 4347 4485 4935 5405 5499 6279 6345 7245 7567 8073 8883 9165 9729 10465 12285 12831 13455 14053 14805 16215 16497 18837 21385 21735 22701 27495 29187 31395 37835 38493 40365 42159 44415 48645 56511 64155 68103 70265 82485 94185 98371 113505 115479 126477 145935 192465 204309 210795 282555 295113 340515 379431 491855 577395 632385 885339 1021545 1475565 1897155 2656017 4426695 13280085
• Sum of all divisors σ(n): 30965760
• Sum of proper divisors (its aliquot sum) s(n): 17685675
• 13280085 is an abundant number, because the sum of its proper divisors (17685675) is greater than itself. Its abundance is 4405590

Bases of 13280085

• Binary: 110010101010001101010101₂
• Hexadecimal: 0xCAA355
• Base-36: 7WMZ9

Squares and roots of 13280085

• 13280085 squared (13280085²) is 176360657607225
• 13280085 cubed (13280085³) is 2342084523679844614125
• The square root of 13280085 is 3644.1850940917
• The cube root of 13280085 is 236.8101347489

Scales and comparisons

• 13,280,085 seconds is equal to 21 weeks, 6 days, 16 hours, 54 minutes, 45 seconds.
• To count from 1 to 13,280,085 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 13280085 cubic inches would be around 19.7 feet tall.

Recreational maths with 13280085

• 13280085 backwards is 58008231
• 13280085 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 13280085's digits is 27
• More coming soon!