12186990998

Names of 12186990998

• Cardinal: 12186990998 can be written as Twelve billion, one hundred eighty-six million, nine hundred ninety thousand, nine hundred ninety-eight.

Scientific notation

• Scientific notation: 1.2186990998 × 10¹⁰

Factors of 12186990998

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 189

Divisors of 12186990998

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 7 13 14 26 49 91 98 167 182 334 343 637 686 1169 1274 2171 2338 2401 4342 4459 4802 8183 8918 15197 16366 16807 27889 30394 31213 33614 55778 57281 62426 106379 114562 195223 212758 218491 362557 390446 400967 436982 725114 744653 801934 1366561 1489306 2537899 2733122 2806769 5075798 5212571 5613538 9565927 10425142 17765293 19131854 35530586 36487997 66961489 72975994 124357051 133922978 248714102 468730423 870499357 937460846 1740998714 6093495499 12186990998
• Sum of all divisors σ(n): 23105949552
• Sum of proper divisors (its aliquot sum) s(n): 10918958554
• 12186990998 is a deficient number, because the sum of its proper divisors (10918958554) is less than itself. Its deficiency is 1268032444

Bases of 12186990998

• Binary: 1011010110011001101011100110010110₂
• Hexadecimal: 0x2D666B996
• Base-36: 5LJTIFQ

Squares and roots of 12186990998

• 12186990998 squared (12186990998²) is 148522749585333036004
• 12186990998 cubed (12186990998³) is 1810045412194661942612757891992
• The square root of 12186990998 is 110394.7054799279
• The cube root of 12186990998 is 2301.2589829391

Scales and comparisons

• 12,186,990,998 seconds is equal to 387 years, 26 weeks, 3 days, 3 hours, 16 minutes, 38 seconds.
• To count from 1 to 12,186,990,998 would take you about seven hundred seventy-five 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 12186990998 cubic inches would be around 191.8 feet tall.

Recreational maths with 12186990998

• 12186990998 backwards is 89909968121
• The number of decimal digits it has is: 11
• The sum of 12186990998's digits is 62
• More coming soon!