12721127792945

Names of 12721127792945

• Cardinal: 12721127792945 can be written as Twelve trillion, seven hundred twenty-one billion, one hundred twenty-seven million, seven hundred ninety-two thousand, nine hundred forty-five.

Scientific notation

• Scientific notation: 1.2721127792945 × 10¹³

Factors of 12721127792945

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 112

Divisors of 12721127792945

• Number of divisors d(n): 80
• Complete list of divisors:
  1 5 11 13 55 65 83 121 143 415 605 715 913 1079 1331 1573 4565 5395 6655 7865 10043 11869 14641 17303 50215 59345 73205 86515 110473 130559 161051 190333 552365 652795 805255 951665 1215203 1436149 1771561 2093663 6076015 7180745 8857805 10468315 13367233 15797639 19487171 23030293 66836165 78988195 97435855 115151465 147039563 173774029 214358881 253333223 735197815 868870145 1071794405 1266666115 1617435193 1911514319 2357947691 2786665453 8087175965 9557571595 11789738455 13933327265 17791787123 21026657509 30653319983 88958935615 105133287545 153266599915 195709658353 231293232599 978548291765 1156466162995 2544225558589 12721127792945
• Sum of all divisors σ(n): 18301446797760
• Sum of proper divisors (its aliquot sum) s(n): 5580319004815
• 12721127792945 is a deficient number, because the sum of its proper divisors (5580319004815) is less than itself. Its deficiency is 7140808788130

Bases of 12721127792945

• Binary: 10111001000111011110010011011010000100110001₂
• Hexadecimal: 0xB91DE4DA131
• Base-36: 4IC071DF5

Squares and roots of 12721127792945

• 12721127792945 squared (12721127792945²) is 161827092324437726791773025
• 12721127792945 cubed (12721127792945³) is 2058623121819881249310720477101636308625
• The square root of 12721127792945 is 3566669.0052407443
• The cube root of 12721127792945 is 23343.9962695503

Scales and comparisons

• 12,721,127,792,945 seconds is equal to 404,492 years, 26 weeks, 5 days, 9 hours, 9 minutes, 5 seconds.
• To count from 1 to 12,721,127,792,945 would take you about one million, eleven thousand, two hundred thirty-one 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 12721127792945 cubic inches would be around 1945.3 feet tall.

Recreational maths with 12721127792945

• 12721127792945 backwards is 54929772112721
• The number of decimal digits it has is: 14
• The sum of 12721127792945's digits is 59
• More coming soon!