128872578272

Names of 128872578272

• Cardinal: 128872578272 can be written as One hundred twenty-eight billion, eight hundred seventy-two million, five hundred seventy-eight thousand, two hundred seventy-two.

Scientific notation

• Scientific notation: 1.28872578272 × 10¹¹

Factors of 128872578272

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 82

Divisors of 128872578272

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 8 16 32 37 43 74 86 148 172 296 344 592 688 1184 1369 1376 1591 1849 2738 3182 3698 5476 6364 7396 10952 12728 14792 21904 25456 29584 43808 50653 50912 58867 59168 68413 79507 101306 117734 136826 159014 202612 235468 273652 318028 405224 470936 547304 636056 810448 941872 1094608 1272112 1620896 1883744 2178079 2189216 2531281 2544224 2941759 4356158 5062562 5883518 8712316 10125124 11767036 17424632 20250248 23534072 34849264 40500496 47068144 69698528 81000992 93657397 94136288 108845083 187314794 217690166 374629588 435380332 749259176 870760664 1498518352 1741521328 2997036704 3483042656 4027268071 8054536142 16109072284 32218144568 64436289136 128872578272
• Sum of all divisors σ(n): 266974092000
• Sum of proper divisors (its aliquot sum) s(n): 138101513728
• 128872578272 is an abundant number, because the sum of its proper divisors (138101513728) is greater than itself. Its abundance is 9228935456

Bases of 128872578272

• Binary: 1111000000001011001110111110011100000₂
• Hexadecimal: 0x1E01677CE0
• Base-36: 1N7BELSW

Squares and roots of 128872578272

• 128872578272 squared (128872578272²) is 16608141430472766505984
• 128872578272 cubed (128872578272³) is 2140334006451047647506802996379648
• The square root of 128872578272 is 358988.2703821951
• The cube root of 128872578272 is 5051.1101473629

Scales and comparisons

• 128,872,578,272 seconds is equal to 4,097 years, 38 weeks, 6 days, 18 hours, 24 minutes, 32 seconds.
• To count from 1 to 128,872,578,272 would take you about eight thousand, one hundred ninety-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 128872578272 cubic inches would be around 420.9 feet tall.

Recreational maths with 128872578272

• 128872578272 backwards is 272875278821
• The number of decimal digits it has is: 12
• The sum of 128872578272's digits is 59
• More coming soon!