1685742721425

Names of 1685742721425

• Cardinal: 1685742721425 can be written as One trillion, six hundred eighty-five billion, seven hundred forty-two million, seven hundred twenty-one thousand, four hundred twenty-five.

Scientific notation

• Scientific notation: 1.685742721425 × 10¹²

Factors of 1685742721425

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2339

Divisors of 1685742721425

• Number of divisors d(n): 108
• Complete list of divisors:
  1 3 5 7 9 15 21 25 35 45 63 75 105 175 225 315 525 853 1471 1575 2559 4265 4413 5971 7355 7677 10297 12795 13239 17913 21325 22065 29855 30891 36775 38385 51485 53739 63975 66195 89565 92673 110325 149275 154455 191925 257425 268695 330975 447825 463365 727609 772275 1254763 1343475 2182827 2316825 3638045 3764289 5093263 6273815 6548481 8783341 10914135 11292867 15279789 18190225 18821445 25466315 26350023 31369075 32742405 43916705 45839367 54570675 56464335 76398945 79050069 94107225 127331575 131750115 163712025 219583525 229196835 282321675 381994725 395250345 658750575 1070312839 1145984175 1976251725 3210938517 5351564195 7492189873 9632815551 16054692585 22476569619 26757820975 37460949365 48164077755 67429708857 80273462925 112382848095 187304746825 240820388775 337148544285 561914240475 1685742721425
• Sum of all divisors σ(n): 3457087256064
• Sum of proper divisors (its aliquot sum) s(n): 1771344534639
• 1685742721425 is an abundant number, because the sum of its proper divisors (1771344534639) is greater than itself. Its abundance is 85601813214

Bases of 1685742721425

• Binary: 11000100001111110000110001001100110010001₂
• Hexadecimal: 0x1887E189991
• Base-36: LIF3OWI9

Squares and roots of 1685742721425

• 1685742721425 squared (1685742721425²) is 2841728522837365154030625
• 1685742721425 cubed (1685742721425³) is 4790423173638905197432050095293640625
• The square root of 1685742721425 is 1298361.5526597359
• The cube root of 1685742721425 is 11901.3738531641

Scales and comparisons

• 1,685,742,721,425 seconds is equal to 53,601 years, 21 weeks, 3 hours, 3 minutes, 45 seconds.
• To count from 1 to 1,685,742,721,425 would take you about one hundred thirty-four thousand and three 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 1685742721425 cubic inches would be around 991.8 feet tall.

Recreational maths with 1685742721425

• 1685742721425 backwards is 5241272475861
• The number of decimal digits it has is: 13
• The sum of 1685742721425's digits is 54
• More coming soon!