13991697786

Names of 13991697786

• Cardinal: 13991697786 can be written as Thirteen billion, nine hundred ninety-one million, six hundred ninety-seven thousand, seven hundred eighty-six.

Scientific notation

• Scientific notation: 1.3991697786 × 10¹⁰

Factors of 13991697786

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 608

Divisors of 13991697786

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 11 22 33 66 71 121 142 213 242 363 426 521 726 781 1042 1562 1563 2343 3126 4686 5731 8591 11462 17182 17193 25773 34386 36991 51546 63041 73982 110973 126082 189123 221946 271441 378246 406901 542882 813802 814323 1220703 1628646 2441406 2985851 4475911 5971702 8951822 8957553 13427733 17915106 19272311 26855466 32844361 38544622 57816933 65688722 98533083 115633866 197066166 211995421 423990842 635986263 1271972526 2331949631 4663899262 6995848893 13991697786
• Sum of all divisors σ(n): 31251812256
• Sum of proper divisors (its aliquot sum) s(n): 17260114470
• 13991697786 is an abundant number, because the sum of its proper divisors (17260114470) is greater than itself. Its abundance is 3268416684

Bases of 13991697786

• Binary: 1101000001111110000101110101111010₂
• Hexadecimal: 0x341F85D7A
• Base-36: 6FEAN3U

Squares and roots of 13991697786

• 13991697786 squared (13991697786²) is 195767606934757301796
• 13991697786 cubed (13991697786³) is 2739121192519561985986427023656
• The square root of 13991697786 is 118286.5072017937
• The cube root of 13991697786 is 2409.6657529021

Scales and comparisons

• 13,991,697,786 seconds is equal to 444 years, 46 weeks, 2 days, 22 hours, 43 minutes, 6 seconds.
• To count from 1 to 13,991,697,786 would take you about eight hundred eighty-nine 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 13991697786 cubic inches would be around 200.8 feet tall.

Recreational maths with 13991697786

• 13991697786 backwards is 68779619931
• 13991697786 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 13991697786's digits is 66
• More coming soon!