13285630878

Names of 13285630878

• Cardinal: 13285630878 can be written as Thirteen billion, two hundred eighty-five million, six hundred thirty thousand, eight hundred seventy-eight.

Scientific notation

• Scientific notation: 1.3285630878 × 10¹⁰

Factors of 13285630878

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 470

Divisors of 13285630878

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 13 26 31 39 62 78 93 186 403 421 806 842 961 1209 1263 1922 2418 2526 2883 5473 5766 10946 12493 13051 16419 24986 26102 32838 37479 39153 74958 78306 169663 177241 339326 354482 404581 508989 531723 809162 1017978 1063446 1213743 2304133 2427486 4608266 5259553 5494471 6912399 10519106 10988942 13824798 15778659 16483413 31557318 32966826 71428123 142856246 170328601 214284369 340657202 428568738 510985803 1021971606 2214271813 4428543626 6642815439 13285630878
• Sum of all divisors σ(n): 29638452312
• Sum of proper divisors (its aliquot sum) s(n): 16352821434
• 13285630878 is an abundant number, because the sum of its proper divisors (16352821434) is greater than itself. Its abundance is 3067190556

Bases of 13285630878

• Binary: 1100010111111000101010001110011110₂
• Hexadecimal: 0x317E2A39E
• Base-36: 63PX6E6

Squares and roots of 13285630878

• 13285630878 squared (13285630878²) is 176507987826467050884
• 13285630878 cubed (13285630878³) is 2345019973280958756874067596152
• The square root of 13285630878 is 115263.3110664447
• The cube root of 13285630878 is 2368.4309481259

Scales and comparisons

• 13,285,630,878 seconds is equal to 422 years, 22 weeks, 6 days, 21 hours, 1 minute, 18 seconds.
• To count from 1 to 13,285,630,878 would take you about eight hundred forty-four years!

  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 13285630878 cubic inches would be around 197.4 feet tall.

Recreational maths with 13285630878

• 13285630878 backwards is 87803658231
• The number of decimal digits it has is: 11
• The sum of 13285630878's digits is 51
• More coming soon!