128742329408

Names of 128742329408

• Cardinal: 128742329408 can be written as One hundred twenty-eight billion, seven hundred forty-two million, three hundred twenty-nine thousand, four hundred eight.

Scientific notation

• Scientific notation: 1.28742329408 × 10¹¹

Factors of 128742329408

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 5783

Divisors of 128742329408

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 4 7 8 11 14 16 22 28 31 32 44 56 62 64 77 88 112 124 151 154 176 217 224 248 302 308 341 352 434 448 496 604 616 682 704 868 992 1057 1208 1232 1364 1661 1736 1984 2114 2387 2416 2464 2728 3322 3472 4228 4681 4774 4832 4928 5456 5581 6644 6944 8456 9362 9548 9664 10912 11162 11627 13288 13888 16912 18724 19096 21824 22324 23254 26576 32767 33824 37448 38192 39067 44648 46508 51491 53152 61391 65534 67648 74896 76384 78134 89296 93016 102982 106304 122782 131068 149792 152768 156268 173011 178592 186032 205964 245564 262136 299584 312536 346022 357184 360437 372064 411928 429737 491128 524272 625072 692044 720874 744128 823856 842731 859474 982256 1048544 1211077 1250144 1384088 1441748 1647712 1685462 1718948 1903121 1964512 2097088 2422154 2500288 2768176 2883496 3295424 3370924 3437896 3806242 3929024 4844308 5536352 5766992 5899117 6741848 6875792 7612484 9270041 9688616 11072704 11533984 11798234 13321847 13483696 13751584 15224968 18540082 19377232 23067968 23596468 26124661 26643694 26967392 27503168 30449936 37080164 38754464 47192936 52249322 53287388 53934784 60899872 64890287 74160328 77508928 94385872 104498644 106574776 121799744 129780574 148320656 182872627 188771744 208997288 213149552 259561148 287371271 296641312 365745254 377543488 417994576 426299104 519122296 574742542 593282624 731490508 835989152 852598208 1038244592 1149485084 1462981016 1671978304 2011598897 2076489184 2298970168 2925962032 4023197794 4152978368 4597940336 5851924064 8046395588 9195880672 11703848128 16092791176 18391761344 32185582352 64371164704 128742329408
• Sum of all divisors σ(n): 331023138816
• Sum of proper divisors (its aliquot sum) s(n): 202280809408
• 128742329408 is an abundant number, because the sum of its proper divisors (202280809408) is greater than itself. Its abundance is 73538480000

Bases of 128742329408

• Binary: 1110111111001101001000000110001000000₂
• Hexadecimal: 0x1DF9A40C40
• Base-36: 1N55UX4W

Squares and roots of 128742329408

• 128742329408 squared (128742329408²) is 16574587381397981630464
• 128742329408 cubed (128742329408³) is 2133850988457619082615529215885312
• The square root of 128742329408 is 358806.8134916059
• The cube root of 128742329408 is 5049.4078893793

Scales and comparisons

• 128,742,329,408 seconds is equal to 4,093 years, 31 weeks, 4 days, 6 hours, 10 minutes, 8 seconds.
• To count from 1 to 128,742,329,408 would take you about eight thousand, one hundred eighty-seven 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 128742329408 cubic inches would be around 420.8 feet tall.

Recreational maths with 128742329408

• 128742329408 backwards is 804923247821
• The number of decimal digits it has is: 12
• The sum of 128742329408's digits is 50
• More coming soon!