128038243836240018

Names of 128038243836240018

• Cardinal: 128038243836240018 can be written as One hundred twenty-eight quadrillion, thirty-eight trillion, two hundred forty-three billion, eight hundred thirty-six million, two hundred forty thousand and eighteen.

Scientific notation

• Scientific notation: 1.28038243836240018 × 10¹⁷

Factors of 128038243836240018

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 162407

Divisors of 128038243836240018

• Number of divisors d(n): 54
• Complete list of divisors:
  1 2 3 6 9 18 521 1042 1563 3126 4689 9378 161881 271441 323762 485643 542882 814323 971286 1456929 1628646 2442969 2913858 4885938 84340001 168680002 253020003 506040006 759060009 1518120018 26205458161 43941140521 52410916322 78616374483 87882281042 131823421563 157232748966 235849123449 263646843126 395470264689 471698246898 790940529378 13653043701881 27306087403762 40959131105643 81918262211286 122877393316929 245754786633858 7113235768680001 14226471537360002 21339707306040003 42679414612080006 64019121918120009 128038243836240018
• Sum of all divisors σ(n): 277951402706421951
• Sum of proper divisors (its aliquot sum) s(n): 149913158870181933
• 128038243836240018 is an abundant number, because the sum of its proper divisors (149913158870181933) is greater than itself. Its abundance is 21874915033941915

Bases of 128038243836240018

• Binary: 111000110111000100001101010111001100001100010000010010010₂
• Hexadecimal: 0x1C6E21AB9862092
• Base-36: Z0PRP76LUOI

Squares and roots of 128038243836240018

• 128038243836240018 squared (128038243836240018²) is 16393791884668454961314115704640324
• 128038243836240018 cubed (128038243836240018³) is 2099032322729752431494695046802359452413239225285832
• The square root of 128038243836240018 is 357824319.7942811963
• The cube root of 128038243836240018 is 504018.6068499053

Scales and comparisons

• 128,038,243,836,240,018 seconds is equal to 4,071,220,105 years, 36 weeks, 3 days, 18 seconds.
• To count from 1 to 128,038,243,836,240,018 would take you about twelve billion, two hundred thirteen million, six hundred sixty thousand, three hundred seventeen 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 128038243836240018 cubic inches would be around 42001.6 feet tall.

Recreational maths with 128038243836240018

• 128038243836240018 backwards is 810042638342830821
• The number of decimal digits it has is: 18
• The sum of 128038243836240018's digits is 63
• More coming soon!