13161891897

Names of 13161891897

• Cardinal: 13161891897 can be written as Thirteen billion, one hundred sixty-one million, eight hundred ninety-one thousand, eight hundred ninety-seven.

Scientific notation

• Scientific notation: 1.3161891897 × 10¹⁰

Factors of 13161891897

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1968

Divisors of 13161891897

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 9 11 21 33 63 73 77 99 151 219 231 453 511 657 693 803 1057 1359 1533 1661 1723 2409 3171 4599 4983 5169 5621 7227 9513 11023 11627 12061 14949 15507 16863 18953 33069 34881 36183 50589 56859 77161 99207 104643 108549 121253 125779 132671 170577 231483 260173 363759 377337 398013 694449 780519 848771 880453 1091277 1132011 1194039 1383569 1821211 2341557 2546313 2641359 2861903 4150707 5463633 7638939 7924077 8585709 9684983 12452121 16390899 18992629 20033321 25757127 29054949 56977887 60099963 87164847 132948403 170933661 180299889 208918919 398845209 626756757 1196535627 1462432433 1880270271 4387297299 13161891897
• Sum of all divisors σ(n): 24200656896
• Sum of proper divisors (its aliquot sum) s(n): 11038764999
• 13161891897 is a deficient number, because the sum of its proper divisors (11038764999) is less than itself. Its deficiency is 2123126898

Bases of 13161891897

• Binary: 1100010000100000101000100000111001₂
• Hexadecimal: 0x310828839
• Base-36: 61O90S9

Squares and roots of 13161891897

• 13161891897 squared (13161891897²) is 173235398308314258609
• 13161891897 cubed (13161891897³) is 2280105585267768948115359591273
• The square root of 13161891897 is 114725.2888294469
• The cube root of 13161891897 is 2361.0550138491

Scales and comparisons

• 13,161,891,897 seconds is equal to 418 years, 26 weeks, 2 days, 17 hours, 4 minutes, 57 seconds.
• To count from 1 to 13,161,891,897 would take you about eight hundred thirty-seven 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 13161891897 cubic inches would be around 196.8 feet tall.

Recreational maths with 13161891897

• 13161891897 backwards is 79819816131
• The number of decimal digits it has is: 11
• The sum of 13161891897's digits is 54
• More coming soon!