855143445

Names of 855143445

• Cardinal: 855143445 can be written as Eight hundred fifty-five million, one hundred forty-three thousand, four hundred forty-five.

Scientific notation

• Scientific notation: 8.55143445 × 10⁸

Factors of 855143445

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 215

Divisors of 855143445

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 5 13 15 29 37 39 61 65 67 87 111 145 183 185 195 201 305 335 377 435 481 555 793 871 915 1005 1073 1131 1443 1769 1885 1943 2257 2379 2405 2479 2613 3219 3965 4087 4355 5307 5365 5655 5829 6771 7215 7437 8845 9715 11285 11895 12261 12395 13065 13949 16095 20435 22997 25259 26535 29145 29341 32227 33855 37185 41847 53131 61305 65453 68991 69745 71891 75777 88023 96681 114985 118523 126295 146705 151219 159393 161135 196359 209235 215673 265655 327265 344955 355569 359455 378885 440115 453657 483405 592615 756095 796965 850889 934583 981795 1078365 1540799 1777845 1965847 2268285 2552667 2803749 4254445 4385351 4622397 4672915 5897541 7703995 9829235 12763335 13156053 14018745 21926755 23111985 29487705 57009563 65780265 171028689 285047815 855143445
• Sum of all divisors σ(n): 1614896640
• Sum of proper divisors (its aliquot sum) s(n): 759753195
• 855143445 is a deficient number, because the sum of its proper divisors (759753195) is less than itself. Its deficiency is 95390250

Bases of 855143445

• Binary: 110010111110000111010000010101₂
• Hexadecimal: 0x32F87415
• Base-36: E54OWL

Squares and roots of 855143445

• 855143445 squared (855143445²) is 731270311526468025
• 855143445 cubed (855143445³) is 625341013424967075580846125
• The square root of 855143445 is 29242.8357893003
• The cube root of 855143445 is 949.1750715111

Scales and comparisons

• 855,143,445 seconds is equal to 27 years, 9 weeks, 6 days, 11 hours, 50 minutes, 45 seconds.
• To count from 1 to 855,143,445 would take you about 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 855143445 cubic inches would be around 79.1 feet tall.

Recreational maths with 855143445

• 855143445 backwards is 544341558
• 855143445 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 855143445's digits is 39
• More coming soon!