309868811920

Names of 309868811920

• Cardinal: 309868811920 can be written as Three hundred nine billion, eight hundred sixty-eight million, eight hundred eleven thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 3.0986881192 × 10¹¹

Factors of 309868811920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2052

Divisors of 309868811920

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 5 8 10 16 20 23 40 43 46 80 86 92 115 172 184 215 230 344 368 430 460 688 860 920 989 1720 1840 1978 1979 3440 3956 3958 4945 7912 7916 9890 9895 15824 15832 19780 19790 31664 39560 39580 45517 79120 79160 85097 91034 158320 170194 182068 227585 340388 364136 425485 455170 680776 728272 850970 910340 1361552 1701940 1820680 1957231 3403880 3641360 3914462 3916441 6807760 7828924 7832882 9786155 15657848 15665764 19572310 19582205 31315696 31331528 39144620 39164410 62663056 78289240 78328820 90078143 156578480 156657640 168406963 180156286 313315280 336813926 360312572 450390715 673627852 720625144 842034815 900781430 1347255704 1441250288 1684069630 1801562860 2694511408 3368139260 3603125720 3873360149 6736278520 7206251440 7746720298 13472557040 15493440596 19366800745 30986881192 38733601490 61973762384 77467202980 154934405960 309868811920
• Sum of all divisors σ(n): 769640579136
• Sum of proper divisors (its aliquot sum) s(n): 459771767216
• 309868811920 is an abundant number, because the sum of its proper divisors (459771767216) is greater than itself. Its abundance is 149902955296

Bases of 309868811920

• Binary: 100100000100101100111101101011010010000₂
• Hexadecimal: 0x48259ED690
• Base-36: 3YCNW1HS

Squares and roots of 309868811920

• 309868811920 squared (309868811920²) is 96018680600712334086400
• 309868811920 cubed (309868811920³) is 29753194479868682869042886629888000
• The square root of 309868811920 is 556658.6134427455
• The cube root of 309868811920 is 6766.9446209145

Scales and comparisons

• 309,868,811,920 seconds is equal to 9,852 years, 45 weeks, 1 day, 13 hours, 58 minutes, 40 seconds.
• To count from 1 to 309,868,811,920 would take you about nineteen thousand, seven hundred five 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 309868811920 cubic inches would be around 563.9 feet tall.

Recreational maths with 309868811920

• 309868811920 backwards is 029118868903
• The number of decimal digits it has is: 12
• The sum of 309868811920's digits is 55
• More coming soon!