128013253960

Names of 128013253960

• Cardinal: 128013253960 can be written as One hundred twenty-eight billion, thirteen million, two hundred fifty-three thousand, nine hundred sixty.

Scientific notation

• Scientific notation: 1.2801325396 × 10¹¹

Factors of 128013253960

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 15198

Divisors of 128013253960

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 20 40 101 202 404 505 808 1010 2020 2521 4040 5042 10084 12569 12605 20168 25138 25210 50276 50420 62845 100552 100840 125690 251380 254621 502760 509242 1018484 1269469 1273105 2036968 2538938 2546210 5077876 5092420 6347345 10155752 10184840 12694690 25389380 31686449 50778760 63372898 126745796 158432245 253491592 316864490 633728980 1267457960 3200331349 6400662698 12801325396 16001656745 25602650792 32003313490 64006626980 128013253960
• Sum of all divisors σ(n): 291020137200
• Sum of proper divisors (its aliquot sum) s(n): 163006883240
• 128013253960 is an abundant number, because the sum of its proper divisors (163006883240) is greater than itself. Its abundance is 34993629280

Bases of 128013253960

• Binary: 1110111001110001011110011110101001000₂
• Hexadecimal: 0x1DCE2F3D48
• Base-36: 1MT3SAX4

Squares and roots of 128013253960

• 128013253960 squared (128013253960²) is 16387393189427455681600
• 128013253960 cubed (128013253960³) is 2097803526100551271165305699136000
• The square root of 128013253960 is 357789.3988927009
• The cube root of 128013253960 is 5039.8581409009

Scales and comparisons

• 128,013,253,960 seconds is equal to 4,070 years, 22 weeks, 21 hours, 12 minutes, 40 seconds.
• To count from 1 to 128,013,253,960 would take you about eight thousand, one hundred forty 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 128013253960 cubic inches would be around 420 feet tall.

Recreational maths with 128013253960

• 128013253960 backwards is 069352310821
• 128013253960 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128013253960's digits is 40
• More coming soon!