128089815728

Names of 128089815728

• Cardinal: 128089815728 can be written as One hundred twenty-eight billion, eighty-nine million, eight hundred fifteen thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.28089815728 × 10¹¹

Factors of 128089815728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1249

Divisors of 128089815728

• Number of divisors d(n): 150
• Complete list of divisors:
  1 2 4 7 8 14 16 28 49 53 56 98 106 112 196 212 343 371 392 424 686 742 784 848 1187 1372 1484 2374 2401 2597 2744 2809 2968 4748 4802 5194 5488 5618 5936 8309 9496 9604 10388 11236 16618 18179 18992 19208 19663 20776 22472 33236 36358 38416 39326 41552 44944 58163 62911 66472 72716 78652 116326 125822 127253 132944 137641 145432 157304 232652 251644 254506 275282 290864 314608 407141 440377 465304 503288 509012 550564 814282 880754 930608 963487 1006576 1018024 1101128 1628564 1761508 1926974 2036048 2202256 2849987 3082639 3257128 3334283 3523016 3853948 5699974 6165278 6514256 6668566 6744409 7046032 7707896 11399948 12330556 13337132 13488818 15415792 21578473 22799896 23339981 24661112 26674264 26977636 43156946 45599792 46679962 49322224 53348528 53955272 86313892 93359924 107910544 151049311 163379867 172627784 186719848 302098622 326759734 345255568 373439696 604197244 653519468 1143659069 1208394488 1307038936 2287318138 2416788976 2614077872 4574636276 8005613483 9149272552 16011226966 18298545104 32022453932 64044907864 128089815728
• Sum of all divisors σ(n): 295333417764
• Sum of proper divisors (its aliquot sum) s(n): 167243602036
• 128089815728 is an abundant number, because the sum of its proper divisors (167243602036) is greater than itself. Its abundance is 39153786308

Bases of 128089815728

• Binary: 1110111010010101111110111101010110000₂
• Hexadecimal: 0x1DD2BF7AB0
• Base-36: 1MUDDACW

Squares and roots of 128089815728

• 128089815728 squared (128089815728²) is 16407000893232996169984
• 128089815728 cubed (128089815728³) is 2101569721063345881582580324708352
• The square root of 128089815728 is 357896.3756843593
• The cube root of 128089815728 is 5040.8626815471

Scales and comparisons

• 128,089,815,728 seconds is equal to 4,072 years, 44 weeks, 5 days, 22 minutes, 8 seconds.
• To count from 1 to 128,089,815,728 would take you about eight thousand, one hundred forty-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 128089815728 cubic inches would be around 420.1 feet tall.

Recreational maths with 128089815728

• 128089815728 backwards is 827518980821
• The number of decimal digits it has is: 12
• The sum of 128089815728's digits is 59
• More coming soon!