918142666805

Names of 918142666805

• Cardinal: 918142666805 can be written as Nine hundred eighteen billion, one hundred forty-two million, six hundred sixty-six thousand, eight hundred five.

Scientific notation

• Scientific notation: 9.18142666805 × 10¹¹

Factors of 918142666805

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 319

Divisors of 918142666805

• Number of divisors d(n): 162
• Complete list of divisors:
  1 5 7 13 17 35 49 65 85 91 119 169 221 245 277 289 455 595 637 833 845 1105 1183 1385 1445 1547 1939 2023 2873 3185 3601 3757 4165 4709 5915 7735 8281 9695 10115 10829 13573 14161 14365 18005 18785 20111 23545 25207 26299 32963 41405 46813 48841 54145 61217 67865 70805 76729 80053 100555 126035 131495 140777 164815 176449 184093 230741 234065 244205 306085 327691 341887 383645 400265 428519 537103 560371 703885 795821 882245 920465 997477 1040689 1153705 1304393 1638455 1709435 2142595 2293837 2393209 2685515 2801855 2999633 3759721 3922597 3979105 4987385 5203445 5570747 6521965 6982339 7284823 9130751 11469185 11966045 12967201 13528957 14998165 16957109 18798605 19612985 22174681 27853735 34911695 36424115 38995229 45653755 48876373 50993761 63915257 64836005 67644785 84785545 90770407 94702699 110873405 118699763 155222767 194976145 220442417 244381865 254968805 288270853 319576285 453852035 473513495 593498815 635392849 662918893 776113835 830898341 1086559369 1102212085 1441354265 1543096919 2017895971 3176964245 3314594465 3747521089 4154491705 5432796845 7715484595 10089479855 10801678433 14125271797 18737605445 26232647623 54008392165 70626358985 131163238115 183628533361 918142666805
• Sum of all divisors σ(n): 1479604951314
• Sum of proper divisors (its aliquot sum) s(n): 561462284509
• 918142666805 is a deficient number, because the sum of its proper divisors (561462284509) is less than itself. Its deficiency is 356680382296

Bases of 918142666805

• Binary: 1101010111000101100100010100100000110101₂
• Hexadecimal: 0xD5C5914835
• Base-36: BPSEFRQT

Squares and roots of 918142666805

• 918142666805 squared (918142666805²) is 842985956607797248908025
• 918142666805 cubed (918142666805³) is 773981374279046977569156447665610125
• The square root of 918142666805 is 958197.6136502323
• The cube root of 918142666805 is 9719.3388473231

Scales and comparisons

• 918,142,666,805 seconds is equal to 29,194 years, 5 weeks, 5 hours, 40 minutes, 5 seconds.
• To count from 1 to 918,142,666,805 would take you about fifty-eight thousand, three hundred eighty-eight 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 918142666805 cubic inches would be around 809.9 feet tall.

Recreational maths with 918142666805

• 918142666805 backwards is 508666241819
• The number of decimal digits it has is: 12
• The sum of 918142666805's digits is 56
• More coming soon!