13123864221

Names of 13123864221

• Cardinal: 13123864221 can be written as Thirteen billion, one hundred twenty-three million, eight hundred sixty-four thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 1.3123864221 × 10¹⁰

Factors of 13123864221

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 3062

Divisors of 13123864221

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 13 17 37 39 51 111 191 221 481 573 629 663 1443 1887 2483 2801 3247 7067 7449 8177 8403 9741 21201 24531 36413 42211 47617 91871 103637 109239 120139 126633 142851 275613 310911 360417 534991 619021 1347281 1561807 1604973 1761829 1857063 4041843 4685421 5285487 6954883 9094847 19794667 20864649 22903777 27284541 59384001 68711331 118233011 257330671 336509339 354699033 771992013 1009528017 4374621407 13123864221
• Sum of all divisors σ(n): 20606939136
• Sum of proper divisors (its aliquot sum) s(n): 7483074915
• 13123864221 is a deficient number, because the sum of its proper divisors (7483074915) is less than itself. Its deficiency is 5640789306

Bases of 13123864221

• Binary: 1100001110001111100100011010011101₂
• Hexadecimal: 0x30E3E469D
• Base-36: 611LYFX

Squares and roots of 13123864221

• 13123864221 squared (13123864221²) is 172235812091243936841
• 13123864221 cubed (13123864221³) is 2260399411879155490090783665861
• The square root of 13123864221 is 114559.4353207103
• The cube root of 13123864221 is 2358.7789468273

Scales and comparisons

• 13,123,864,221 seconds is equal to 417 years, 15 weeks, 3 days, 13 hours, 50 minutes, 21 seconds.
• To count from 1 to 13,123,864,221 would take you about eight hundred thirty-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 13123864221 cubic inches would be around 196.6 feet tall.

Recreational maths with 13123864221

• 13123864221 backwards is 12246832131
• The number of decimal digits it has is: 11
• The sum of 13123864221's digits is 33
• More coming soon!