161688401242995375

Names of 161688401242995375

• Cardinal: 161688401242995375 can be written as One hundred sixty-one quadrillion, six hundred eighty-eight trillion, four hundred one billion, two hundred forty-two million, nine hundred ninety-five thousand, three hundred seventy-five.

Scientific notation

• Scientific notation: 1.61688401242995375 × 10¹⁷

Factors of 161688401242995375

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 329612

Divisors of 161688401242995375

• Number of divisors d(n): 216
• Complete list of divisors:
  1 3 5 7 9 15 21 25 27 35 45 49 63 75 81 105 125 135 147 175 189 225 243 245 315 375 405 441 525 567 675 735 875 945 1125 1215 1225 1323 1575 1701 2025 2205 2625 2835 3375 3675 3969 4725 6075 6125 6615 7875 8505 10125 11025 11907 14175 18375 19845 23625 30375 33075 42525 55125 59535 70875 99225 165375 212625 297675 329597 496125 988791 1488375 1647985 2307179 2966373 4943955 6921537 8239925 8899119 11535895 14831865 16150253 20764611 24719775 26697357 34607685 41199625 44495595 48450759 57679475 62293833 74159325 80092071 80751265 103823055 123598875 133486785 145352277 173038425 186881499 222477975 242253795 288397375 311469165 370796625 400460355 403756325 436056831 519115275 560644497 667433925 726761385 865192125 934407495 1112389875 1211268975 1308170493 1557345825 2002301775 2018781625 2180284155 2595576375 2803222485 3337169625 3633806925 3924511479 4672037475 6056344875 6540852465 7786729125 10011508875 10901420775 14016112425 18169034625 19622557395 23360187375 32704262325 54507103875 70080562125 98112786975 108634182409 163521311625 325902547227 490563934875 543170912045 760439276863 977707641681 1629512736135 2281317830589 2715854560225 2933122925043 3802196384315 4888538208405 5323074938041 6843953491767 8147563680675 8799368775129 11406589152945 13579272801125 14665614625215 15969224814123 19010981921575 20531860475301 24442691042025 26398106325387 26615374690205 34219767458835 40737818403375 43996843875645 47907674442369 57032945764725 61595581425903 73328073126075 79846124070615 95054909607875 102659302376505 122213455210125 131990531626935 133076873451025 143723023327107 171098837294175 184786744277709 219984219378225 239538372211845 285164728823625 307977907129515 366640365630375 399230620353075 431169069981321 513296511882525 659952658134675 665384367255125 718615116635535 855494186470875 923933721388545 1099921096891125 1197691861059225 1293507209943963 1539889535647575 1996153101765375 2155845349906605 2566482559412625 3299763290673375 3593075583177675 4619668606942725 5988459305296125 6467536049719815 7699447678237875 10779226749533025 17965377915888375 23098343034713625 32337680248599075 53896133747665125 161688401242995375
• Sum of all divisors σ(n): 351616021398912816
• Sum of proper divisors (its aliquot sum) s(n): 189927620155917441
• 161688401242995375 is an abundant number, because the sum of its proper divisors (189927620155917441) is greater than itself. Its abundance is 28239218912922066

Bases of 161688401242995375

• Binary: 1000111110011011101011111010001000011000111011101010101111₂
• Hexadecimal: 0x23E6EBE8863BAAF
• Base-36: 1881R63P9RXR

Squares and roots of 161688401242995375

• 161688401242995375 squared (161688401242995375²) is 26143139096515868327337502271390625
• 161688401242995375 cubed (161688401242995375³) is 4227042363988897309408779947247017318640541693359375
• The square root of 161688401242995375 is 402104962.9673766847
• The cube root of 161688401242995375 is 544786.4396191073

Scales and comparisons

• 161,688,401,242,995,375 seconds is equal to 5,141,191,024 years, 24 weeks, 1 day, 56 minutes, 15 seconds.
• To count from 1 to 161,688,401,242,995,375 would take you about fifteen billion, four hundred twenty-three million, five hundred seventy-three thousand and seventy-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 161688401242995375 cubic inches would be around 45398.9 feet tall.

Recreational maths with 161688401242995375

• 161688401242995375 backwards is 573599242104886161
• 161688401242995375 is a Harshad number.
• The number of decimal digits it has is: 18
• The sum of 161688401242995375's digits is 81
• More coming soon!