42855813

Names of 42855813

• Cardinal: 42855813 can be written as Forty-two million, eight hundred fifty-five thousand, eight hundred thirteen.

Scientific notation

• Scientific notation: 4.2855813 × 10⁷

Factors of 42855813

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 172

Divisors of 42855813

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 9 11 13 21 33 39 63 67 71 77 91 99 117 143 201 213 231 273 429 469 497 603 639 693 737 781 819 871 923 1001 1287 1407 1491 2211 2343 2613 2769 3003 4221 4473 4757 5159 5467 6097 6461 6633 7029 7839 8307 9009 9581 10153 14271 15477 16401 18291 19383 28743 30459 33299 42813 46431 49203 52327 54873 58149 61841 67067 71071 86229 91377 99897 156981 185523 201201 213213 299691 366289 432887 470943 556569 603603 639639 680251 1098867 1298661 2040753 3296601 3895983 4761757 6122259 14285271 42855813
• Sum of all divisors σ(n): 85542912
• Sum of proper divisors (its aliquot sum) s(n): 42687099
• 42855813 is a deficient number, because the sum of its proper divisors (42687099) is less than itself. Its deficiency is 168714

Bases of 42855813

• Binary: 10100011011110110110000101₂
• Hexadecimal: 0x28DED85
• Base-36: PIJR9

Squares and roots of 42855813

• 42855813 squared (42855813²) is 1836620707890969
• 42855813 cubed (42855813³) is 78709873609302991852797
• The square root of 42855813 is 6546.4351367749
• The cube root of 42855813 is 349.9477826861

Scales and comparisons

• 42,855,813 seconds is equal to 1 year, 18 weeks, 6 days, 23 minutes, 33 seconds.
• To count from 1 to 42,855,813 would take you about two 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 42855813 cubic inches would be around 29.2 feet tall.

Recreational maths with 42855813

• 42855813 backwards is 31855824
• The number of decimal digits it has is: 8
• The sum of 42855813's digits is 36
• More coming soon!