128421459396

Names of 128421459396

• Cardinal: 128421459396 can be written as One hundred twenty-eight billion, four hundred twenty-one million, four hundred fifty-nine thousand, three hundred ninety-six.

Scientific notation

• Scientific notation: 1.28421459396 × 10¹¹

Factors of 128421459396

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3567

Divisors of 128421459396

• Number of divisors d(n): 126
• Complete list of divisors:
  1 2 3 4 6 9 12 18 27 36 54 81 108 113 162 226 243 324 339 452 486 678 729 972 1017 1356 1458 2034 2916 3051 3449 4068 6102 6898 9153 10347 12204 12769 13796 18306 20694 25538 27459 31041 36612 38307 41388 51076 54918 62082 76614 82377 93123 109836 114921 124164 153228 164754 186246 229842 279369 329508 344763 372492 389737 459684 558738 689526 779474 838107 1034289 1117476 1169211 1379052 1558948 1676214 2068578 2338422 2514321 3102867 3352428 3507633 4137156 4676844 5028642 6205734 7015266 9308601 10057284 10522899 12411468 14030532 18617202 21045798 31568697 37234404 42091596 44040281 63137394 88080562 94706091 126274788 132120843 176161124 189412182 264241686 284118273 378824364 396362529 528483372 568236546 792725058 1136473092 1189087587 1585450116 2378175174 3567262761 4756350348 7134525522 10701788283 14269051044 21403576566 32105364849 42807153132 64210729698 128421459396
• Sum of all divisors σ(n): 340059023850
• Sum of proper divisors (its aliquot sum) s(n): 211637564454
• 128421459396 is an abundant number, because the sum of its proper divisors (211637564454) is greater than itself. Its abundance is 83216105058

Bases of 128421459396

• Binary: 1110111100110100000111111010111000100₂
• Hexadecimal: 0x1DE683F5C4
• Base-36: 1MZUTK90

Squares and roots of 128421459396

• 128421459396 squared (128421459396²) is 16492071233398476684816
• 128421459396 cubed (128421459396³) is 2117935856255822112667350633731136
• The square root of 128421459396 is 358359.3997595151
• The cube root of 128421459396 is 5045.2094477361

Scales and comparisons

• 128,421,459,396 seconds is equal to 4,083 years, 21 weeks, 11 hours, 36 minutes, 36 seconds.
• To count from 1 to 128,421,459,396 would take you about eight thousand, one hundred sixty-six 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 128421459396 cubic inches would be around 420.4 feet tall.

Recreational maths with 128421459396

• 128421459396 backwards is 693954124821
• 128421459396 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128421459396's digits is 54
• More coming soon!