855421473165

Names of 855421473165

• Cardinal: 855421473165 can be written as Eight hundred fifty-five billion, four hundred twenty-one million, four hundred seventy-three thousand, one hundred sixty-five.

Scientific notation

• Scientific notation: 8.55421473165 × 10¹¹

Factors of 855421473165

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 24475

Divisors of 855421473165

• Number of divisors d(n): 80
• Complete list of divisors:
  1 3 5 7 15 21 35 49 105 147 245 343 735 1013 1029 1715 2401 3039 5065 5145 7091 7203 12005 15195 21273 23447 35455 36015 49637 70341 106365 117235 148911 164129 248185 347459 351705 492387 744555 820645 1042377 1148903 1737295 2432213 2461935 3446709 5211885 5744515 7296639 8042321 12161065 17233545 23751811 24126963 36483195 40211605 56296247 71255433 118759055 120634815 166262677 168888741 281481235 356277165 498788031 831313385 844443705 1163838739 2493940155 3491516217 5819193695 8146871173 17457581085 24440613519 40734355865 57028098211 122203067595 171084294633 285140491055 855421473165
• Sum of all divisors σ(n): 1598336108928
• Sum of proper divisors (its aliquot sum) s(n): 742914635763
• 855421473165 is a deficient number, because the sum of its proper divisors (742914635763) is less than itself. Its deficiency is 112506837402

Bases of 855421473165

• Binary: 1100011100101011000101111101000110001101₂
• Hexadecimal: 0xC72B17D18D
• Base-36: AWZ3UWZX

Squares and roots of 855421473165

• 855421473165 squared (855421473165²) is 731745896751778815117225
• 855421473165 cubed (855421473165³) is 625951152981850622361814781666767125
• The square root of 855421473165 is 924889.9789515507
• The cube root of 855421473165 is 9492.7792708477

Scales and comparisons

• 855,421,473,165 seconds is equal to 27,199 years, 39 weeks, 2 days, 11 hours, 52 minutes, 45 seconds.
• To count from 1 to 855,421,473,165 would take you about fifty-four thousand, three hundred ninety-nine 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 855421473165 cubic inches would be around 791.1 feet tall.

Recreational maths with 855421473165

• 855421473165 backwards is 561374124558
• The number of decimal digits it has is: 12
• The sum of 855421473165's digits is 51
• More coming soon!