13681311642

Names of 13681311642

• Cardinal: 13681311642 can be written as Thirteen billion, six hundred eighty-one million, three hundred eleven thousand, six hundred forty-two.

Scientific notation

• Scientific notation: 1.3681311642 × 10¹⁰

Factors of 13681311642

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 8151

Divisors of 13681311642

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 9 18 27 54 59 81 118 162 177 243 354 486 531 1062 1593 3186 3481 4779 6962 8087 9558 10443 14337 16174 20886 24261 28674 31329 48522 62658 72783 93987 145566 187974 218349 281961 436698 477133 563922 655047 845883 954266 1310094 1431399 1691766 1965141 2862798 3930282 4294197 8588394 12882591 25765182 28150847 38647773 56301694 77295546 84452541 115943319 168905082 231886638 253357623 506715246 760072869 1520145738 2280218607 4560437214 6840655821 13681311642
• Sum of all divisors σ(n): 31274451936
• Sum of proper divisors (its aliquot sum) s(n): 17593140294
• 13681311642 is an abundant number, because the sum of its proper divisors (17593140294) is greater than itself. Its abundance is 3911828652

Bases of 13681311642

• Binary: 1100101111011110000011111110011010₂
• Hexadecimal: 0x32F783F9A
• Base-36: 6A9HZMI

Squares and roots of 13681311642

• 13681311642 squared (13681311642²) is 187178288245524736164
• 13681311642 cubed (13681311642³) is 2560844494103129327279511621288
• The square root of 13681311642 is 116967.1391545505
• The cube root of 13681311642 is 2391.7139973639

Scales and comparisons

• 13,681,311,642 seconds is equal to 435 years, 1 week, 1 day, 12 hours, 20 minutes, 42 seconds.
• To count from 1 to 13,681,311,642 would take you about eight hundred seventy 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 13681311642 cubic inches would be around 199.3 feet tall.

Recreational maths with 13681311642

• 13681311642 backwards is 24611318631
• The number of decimal digits it has is: 11
• The sum of 13681311642's digits is 36
• More coming soon!