1938394339840

Names of 1938394339840

• Cardinal: 1938394339840 can be written as One trillion, nine hundred thirty-eight billion, three hundred ninety-four million, three hundred thirty-nine thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.93839433984 × 10¹²

Factors of 1938394339840

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 3945

Divisors of 1938394339840

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 49 56 64 70 80 98 112 128 140 160 196 224 245 256 280 320 392 448 490 512 560 640 784 896 980 1120 1280 1568 1792 1960 2240 2560 3136 3584 3920 3931 4480 6272 7840 7862 8960 12544 15680 15724 17920 19655 25088 27517 31360 31448 39310 55034 62720 62896 78620 110068 125440 125792 137585 157240 192619 220136 251584 275170 314480 385238 440272 503168 550340 628960 770476 880544 963095 1006336 1100680 1257920 1540952 1761088 1926190 2012672 2201360 2515840 3081904 3522176 3852380 4402720 5031680 6163808 7044352 7704760 8805440 10063360 12327616 14088704 15409520 15452761 17610880 24655232 30819040 30905522 35221760 49310464 61638080 61811044 70443520 77263805 98620928 108169327 123276160 123622088 154527610 216338654 246552320 247244176 309055220 432677308 493104640 494488352 540846635 618110440 757185289 865354616 988976704 1081693270 1236220880 1514370578 1730709232 1977953408 2163386540 2472441760 3028741156 3461418464 3785926445 3955906816 4326773080 4944883520 6057482312 6922836928 7571852890 7911813632 8653546160 9889767040 12114964624 13845673856 15143705780 17307092320 19779534080 24229929248 27691347712 30287411560 34614184640 39559068160 48459858496 55382695424 60574823120 69228369280 96919716992 121149646240 138456738560 193839433984 242299292480 276913477120 387678867968 484598584960 969197169920 1938394339840
• Sum of all divisors σ(n): 5407771353138
• Sum of proper divisors (its aliquot sum) s(n): 3469377013298
• 1938394339840 is an abundant number, because the sum of its proper divisors (3469377013298) is greater than itself. Its abundance is 1530982673458

Bases of 1938394339840

• Binary: 11100001101010001010011100101101000000000₂
• Hexadecimal: 0x1C3514E5A00
• Base-36: OQHHXWXS

Squares and roots of 1938394339840

• 1938394339840 squared (1938394339840²) is 3757372616723749411225600
• 1938394339840 cubed (1938394339840³) is 7283269812927125583622235597307904000
• The square root of 1938394339840 is 1392262.3099976527
• The cube root of 1938394339840 is 12468.4952544487

Scales and comparisons

• 1,938,394,339,840 seconds is equal to 61,634 years, 49 weeks, 16 hours, 10 minutes, 40 seconds.
• To count from 1 to 1,938,394,339,840 would take you about one hundred fifty-four thousand and eighty-seven 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 1938394339840 cubic inches would be around 1039 feet tall.

Recreational maths with 1938394339840

• 1938394339840 backwards is 0489334938391
• 1938394339840 is a Harshad number.
• The number of decimal digits it has is: 13
• The sum of 1938394339840's digits is 64
• More coming soon!