85400128

Names of 85400128

• Cardinal: 85400128 can be written as Eighty-five million, four hundred thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 8.5400128 × 10⁷

Factors of 85400128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 178

Divisors of 85400128

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 4 8 11 16 22 29 32 44 47 58 64 88 89 94 116 176 178 188 232 319 352 356 376 464 517 638 704 712 752 928 979 1034 1276 1363 1424 1504 1856 1958 2068 2552 2581 2726 2848 3008 3916 4136 4183 5104 5162 5452 5696 7832 8272 8366 10208 10324 10904 14993 15664 16544 16732 20416 20648 21808 28391 29986 31328 33088 33464 41296 43616 46013 56782 59972 62656 66928 82592 87232 92026 113564 119944 121307 133856 165184 184052 227128 239888 242614 267712 368104 454256 479776 485228 736208 908512 959552 970456 1334377 1472416 1817024 1940912 2668754 2944832 3881824 5337508 7763648 10675016 21350032 42700064 85400128
• Sum of all divisors σ(n): 197510400
• Sum of proper divisors (its aliquot sum) s(n): 112110272
• 85400128 is an abundant number, because the sum of its proper divisors (112110272) is greater than itself. Its abundance is 26710144

Bases of 85400128

• Binary: 101000101110001101001000000₂
• Hexadecimal: 0x5171A40
• Base-36: 1EUF5S

Squares and roots of 85400128

• 85400128 squared (85400128²) is 7293181862416384
• 85400128 cubed (85400128³) is 622838664577637582897152
• The square root of 85400128 is 9241.2189672145
• The cube root of 85400128 is 440.3718069409

Scales and comparisons

• 85,400,128 seconds is equal to 2 years, 37 weeks, 1 day, 10 hours, 15 minutes, 28 seconds.
• To count from 1 to 85,400,128 would take you about four 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 85400128 cubic inches would be around 36.7 feet tall.

Recreational maths with 85400128

• 85400128 backwards is 82100458
• The number of decimal digits it has is: 8
• The sum of 85400128's digits is 28
• More coming soon!