13138556431

Names of 13138556431

• Cardinal: 13138556431 can be written as Thirteen billion, one hundred thirty-eight million, five hundred fifty-six thousand, four hundred thirty-one.

Scientific notation

• Scientific notation: 1.3138556431 × 10¹⁰

Factors of 13138556431

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 754

Divisors of 13138556431

• Number of divisors d(n): 96
• Complete list of divisors:
  1 7 11 13 31 61 77 91 121 143 217 341 403 427 631 671 793 847 1001 1573 1891 2387 2821 3751 4417 4433 4697 5551 6941 7381 8203 8723 11011 13237 19561 20801 24583 26257 31031 38491 48587 48763 51667 57421 61061 76351 90233 95953 136927 145607 172081 215171 228811 254293 269437 270413 341341 423401 500383 534457 631631 671671 992563 1193221 1506197 1601677 1780051 1892891 2366881 2797223 2963807 2974543 3502681 4657411 5504213 6947941 8352547 13125431 15511873 16568167 19580561 20821801 30769453 32601877 38529491 60546343 91878017 108583111 144379741 170630603 215386171 423824401 1010658187 1194414221 1876936633 13138556431
• Sum of all divisors σ(n): 18677915648
• Sum of proper divisors (its aliquot sum) s(n): 5539359217
• 13138556431 is a deficient number, because the sum of its proper divisors (5539359217) is less than itself. Its deficiency is 7599197214

Bases of 13138556431

• Binary: 1100001111000111100111011000001111₂
• Hexadecimal: 0x30F1E760F
• Base-36: 61ACV0V

Squares and roots of 13138556431

• 13138556431 squared (13138556431²) is 172621665090571457761
• 13138556431 cubed (13138556431³) is 2267999488005655823830831410991
• The square root of 13138556431 is 114623.5422197377
• The cube root of 13138556431 is 2359.6588388749

Scales and comparisons

• 13,138,556,431 seconds is equal to 417 years, 39 weeks, 5 days, 15 hours, 31 seconds.
• To count from 1 to 13,138,556,431 would take you about eight hundred thirty-five 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 13138556431 cubic inches would be around 196.6 feet tall.

Recreational maths with 13138556431

• 13138556431 backwards is 13465583131
• The number of decimal digits it has is: 11
• The sum of 13138556431's digits is 40
• More coming soon!