128725009008

Names of 128725009008

• Cardinal: 128725009008 can be written as One hundred twenty-eight billion, seven hundred twenty-five million, nine thousand and eight.

Scientific notation

• Scientific notation: 1.28725009008 × 10¹¹

Factors of 128725009008

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 37335

Divisors of 128725009008

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 48 269 538 807 1076 1614 2152 3228 4304 6456 12912 37061 72361 74122 111183 144722 148244 217083 222366 289444 296488 434166 444732 578888 592976 868332 889464 1157776 1736664 1778928 3473328 9969409 19938818 29908227 39877636 59816454 79755272 119632908 159510544 239265816 478531632 2681771021 5363542042 8045313063 10727084084 16090626126 21454168168 32181252252 42908336336 64362504504 128725009008
• Sum of all divisors σ(n): 333789415128
• Sum of proper divisors (its aliquot sum) s(n): 205064406120
• 128725009008 is an abundant number, because the sum of its proper divisors (205064406120) is greater than itself. Its abundance is 76339397112

Bases of 128725009008

• Binary: 1110111111000100110111100001001110000₂
• Hexadecimal: 0x1DF89BC270
• Base-36: 1N4VJOMO

Squares and roots of 128725009008

• 128725009008 squared (128725009008²) is 16570127944109681144064
• 128725009008 cubed (128725009008³) is 2132989868869231225809646145728512
• The square root of 128725009008 is 358782.6765717653
• The cube root of 128725009008 is 5049.1814378641

Scales and comparisons

• 128,725,009,008 seconds is equal to 4,093 years, 2 weeks, 6 days, 18 hours, 56 minutes, 48 seconds.
• To count from 1 to 128,725,009,008 would take you about eight thousand, one hundred eighty-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 128725009008 cubic inches would be around 420.8 feet tall.

Recreational maths with 128725009008

• 128725009008 backwards is 800900527821
• The number of decimal digits it has is: 12
• The sum of 128725009008's digits is 42
• More coming soon!