128748777040

Names of 128748777040

• Cardinal: 128748777040 can be written as One hundred twenty-eight billion, seven hundred forty-eight million, seven hundred seventy-seven thousand and forty.

Scientific notation

• Scientific notation: 1.2874877704 × 10¹¹

Factors of 128748777040

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 38522

Divisors of 128748777040

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 208 260 520 1040 3541 7082 14164 17705 28328 34961 35410 46033 56656 69922 70820 92066 139844 141640 174805 184132 230165 279688 283280 349610 368264 454493 460330 559376 699220 736528 908986 920660 1398440 1817972 1841320 2272465 2796880 3635944 3682640 4544930 7271888 9089860 18179720 36359440 123796901 247593802 495187604 618984505 990375208 1237969010 1609359713 1980750416 2475938020 3218719426 4951876040 6437438852 8046798565 9903752080 12874877704 16093597130 25749755408 32187194260 64374388520 128748777040
• Sum of all divisors σ(n): 322467392016
• Sum of proper divisors (its aliquot sum) s(n): 193718614976
• 128748777040 is an abundant number, because the sum of its proper divisors (193718614976) is greater than itself. Its abundance is 64969837936

Bases of 128748777040

• Binary: 1110111111010000001100110111001010000₂
• Hexadecimal: 0x1DFA066E50
• Base-36: 1N59P45S

Squares and roots of 128748777040

• 128748777040 squared (128748777040²) is 16576247589295631161600
• 128748777040 cubed (128748777040³) is 2134171605034060707070914609664000
• The square root of 128748777040 is 358815.7982029219
• The cube root of 128748777040 is 5049.4921822471

Scales and comparisons

• 128,748,777,040 seconds is equal to 4,093 years, 42 weeks, 1 day, 21 hours, 10 minutes, 40 seconds.
• To count from 1 to 128,748,777,040 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 128748777040 cubic inches would be around 420.8 feet tall.

Recreational maths with 128748777040

• 128748777040 backwards is 040777847821
• The number of decimal digits it has is: 12
• The sum of 128748777040's digits is 55
• More coming soon!