400387806819

Names of 400387806819

• Cardinal: 400387806819 can be written as Four hundred billion, three hundred eighty-seven million, eight hundred six thousand, eight hundred nineteen.

Scientific notation

• Scientific notation: 4.00387806819 × 10¹¹

Factors of 400387806819

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3738

Divisors of 400387806819

• Number of divisors d(n): 216
• Complete list of divisors:
  1 3 7 9 11 13 21 33 39 49 63 77 91 99 117 121 143 147 163 231 273 363 429 441 489 539 637 693 819 847 1001 1089 1141 1287 1467 1573 1617 1793 1911 2119 2541 3003 3423 3541 4719 4851 5379 5733 5929 6357 7007 7623 7987 9009 10269 10623 11011 12551 14157 14833 16137 17787 19071 19723 21021 23309 23961 24787 31869 33033 37653 38951 44499 46033 53361 59169 63063 69927 71883 74361 77077 87857 99099 103831 112959 116853 133497 138061 138099 163163 173509 177507 209781 223083 231231 256399 263571 272657 311493 322231 350559 414183 414297 428461 489489 506363 520527 577183 693693 769197 790713 817971 934479 966427 966693 1142141 1242549 1285383 1468467 1519089 1561581 1731549 1794793 1908599 2255617 2307591 2453913 2899281 2900079 2999227 3426423 3544541 3856149 4040281 4557267 5194647 5384379 5569993 5725797 6349013 6766851 7503379 8697843 8997681 10279269 10633623 12120843 12563551 16153137 16709979 17177391 19047039 20300553 20994589 22510137 24811787 26993043 28281967 31900869 36362529 37690653 38989951 44443091 50129937 52523653 57141117 62983767 67530411 69839143 74435361 82537169 84845901 113071959 116969853 133329273 157570959 188951301 209517429 223306083 247611507 254537703 272929657 311101637 350909559 367665571 399987819 472712877 488874001 577760183 628552287 742834521 818788971 907908859 933304911 1102996713 1466622003 1733280549 2456366913 2723726577 2799914733 3308990139 3422118007 4044321281 4399866009 5199841647 6355362013 8171179731 10266354021 12132963843 19066086039 30799062063 36398891529 44487534091 57198258117 133462602273 400387806819
• Sum of all divisors σ(n): 801475570896
• Sum of proper divisors (its aliquot sum) s(n): 401087764077
• 400387806819 is an abundant number, because the sum of its proper divisors (401087764077) is greater than itself. Its abundance is 699957258

Bases of 400387806819

• Binary: 101110100111000111110010001011001100011₂
• Hexadecimal: 0x5D38F91663
• Base-36: 53XOK8YR

Squares and roots of 400387806819

• 400387806819 squared (400387806819²) is 160310395849328862898761
• 400387806819 cubed (400387806819³) is 64186327804398504189110055622451259
• The square root of 400387806819 is 632762.0459690985
• The cube root of 400387806819 is 7370.4433823993

Scales and comparisons

• 400,387,806,819 seconds is equal to 12,731 years, 4 weeks, 6 days, 3 hours, 13 minutes, 39 seconds.
• To count from 1 to 400,387,806,819 would take you about twenty-five thousand, four hundred sixty-two 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 400387806819 cubic inches would be around 614.2 feet tall.

Recreational maths with 400387806819

• 400387806819 backwards is 918608783004
• The number of decimal digits it has is: 12
• The sum of 400387806819's digits is 54
• More coming soon!