381907800778707818

Names of 381907800778707818

• Cardinal: 381907800778707818 can be written as Three hundred eighty-one quadrillion, nine hundred seven trillion, eight hundred billion, seven hundred seventy-eight million, seven hundred seven thousand, eight hundred eighteen.

Scientific notation

• Scientific notation: 3.81907800778707818 × 10¹⁷

Factors of 381907800778707818

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 5217030

Divisors of 381907800778707818

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 1861 3019 3722 6038 6529 13058 5205619 5618359 10411238 11236718 12150469 19711051 24300938 39422102 9687656959 15715763761 19375313918 31431527522 33987486451 36682265911 67974972902 73364531822 29247036359221 58494072718442 63250712285311 102608221595569 126501424570622 205216443191138 190953900389353909 381907800778707818
• Sum of all divisors σ(n): 573447307426392000
• Sum of proper divisors (its aliquot sum) s(n): 191539506647684182
• 381907800778707818 is a deficient number, because the sum of its proper divisors (191539506647684182) is less than itself. Its deficiency is 190368294131023636

Bases of 381907800778707818

• Binary: 10101001100110011110001111100010010010111011001001101101010₂
• Hexadecimal: 0x54CCF1F125D936A
• Base-36: 2WGF0LM8FN8Q

Squares and roots of 381907800778707818

• 381907800778707818 squared (381907800778707818²) is 145853568295629179836746665814321124
• 381907800778707818 cubed (381907800778707818³) is 55702615503510803602259655866285181315412395621347432
• The square root of 381907800778707818 is 617986893.6949292763
• The cube root of 381907800778707818 is 725525.7705195571

Scales and comparisons

• 381,907,800,778,707,818 seconds is equal to 12,143,486,746 years, 19 weeks, 2 days, 11 hours, 43 minutes, 38 seconds.
• To count from 1 to 381,907,800,778,707,818 would take you about thirty-six billion, four hundred thirty million, four hundred sixty thousand, two hundred thirty-nine 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 381907800778707818 cubic inches would be around 60460.5 feet tall.

Recreational maths with 381907800778707818

• 381907800778707818 backwards is 818707877008709183
• The number of decimal digits it has is: 18
• The sum of 381907800778707818's digits is 89
• More coming soon!