12808810989

Names of 12808810989

• Cardinal: 12808810989 can be written as Twelve billion, eight hundred eight million, eight hundred ten thousand, nine hundred eighty-nine.

Scientific notation

• Scientific notation: 1.2808810989 × 10¹⁰

Factors of 12808810989

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 614

Divisors of 12808810989

• Number of divisors d(n): 80
• Complete list of divisors:
  1 3 9 13 27 39 81 117 167 169 351 431 501 507 1053 1293 1503 1521 2171 2197 3879 4509 4563 5603 6513 6591 11637 13527 13689 16809 19539 19773 28223 34911 50427 58617 59319 71977 72839 84669 151281 175851 177957 215931 218517 254007 366899 453843 647793 655551 762021 935701 946907 1100697 1943379 1966653 2286063 2807103 2840721 3302091 5830137 5899959 8421309 8522163 9906273 12164113 25263927 25566489 29718819 36492339 75791781 76699467 109477017 158133469 328431051 474400407 985293153 1423201221 4269603663 12808810989
• Sum of all divisors σ(n): 20900436480
• Sum of proper divisors (its aliquot sum) s(n): 8091625491
• 12808810989 is a deficient number, because the sum of its proper divisors (8091625491) is less than itself. Its deficiency is 4717185498

Bases of 12808810989

• Binary: 1011111011011101101111000111101101₂
• Hexadecimal: 0x2FB76F1ED
• Base-36: 5VU19T9

Squares and roots of 12808810989

• 12808810989 squared (12808810989²) is 164065638951927158121
• 12808810989 cubed (12808810989³) is 2101485759124751025667805391669
• The square root of 12808810989 is 113176.0177290225
• The cube root of 12808810989 is 2339.7508067969

Scales and comparisons

• 12,808,810,989 seconds is equal to 407 years, 14 weeks, 4 days, 3 hours, 3 minutes, 9 seconds.
• To count from 1 to 12,808,810,989 would take you about eight hundred fourteen 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 12808810989 cubic inches would be around 195 feet tall.

Recreational maths with 12808810989

• 12808810989 backwards is 98901880821
• The number of decimal digits it has is: 11
• The sum of 12808810989's digits is 54
• More coming soon!