642808540842

Names of 642808540842

• Cardinal: 642808540842 can be written as Six hundred forty-two billion, eight hundred eight million, five hundred forty thousand, eight hundred forty-two.

Scientific notation

• Scientific notation: 6.42808540842 × 10¹¹

Factors of 642808540842

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 59337

Divisors of 642808540842

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 13 26 31 39 62 67 78 93 134 186 201 402 403 806 871 1209 1742 2077 2418 2613 4154 4489 5226 6231 8978 12462 13467 26934 27001 54002 58357 59221 81003 116714 118442 139159 162006 175071 177663 278318 350142 355326 417477 769873 834954 1539746 1809067 1835851 2309619 3618134 3671702 3967807 4619238 5427201 5507553 7935614 10854402 11015106 11903421 23806842 23866063 47732126 51581491 71598189 103162982 123002017 143196378 154744473 246004034 265843069 309488946 369006051 531686138 738012102 797529207 1595058414 1599026221 3198052442 3455959897 4797078663 6911919794 8241135139 9594157326 10367879691 16482270278 20735759382 24723405417 49446810834 107134756807 214269513614 321404270421 642808540842
• Sum of all divisors σ(n): 1450846139904
• Sum of proper divisors (its aliquot sum) s(n): 808037599062
• 642808540842 is an abundant number, because the sum of its proper divisors (808037599062) is greater than itself. Its abundance is 165229058220

Bases of 642808540842

• Binary: 1001010110101010010111111110111010101010₂
• Hexadecimal: 0x95AA5FEEAA
• Base-36: 87AVLWH6

Squares and roots of 642808540842

• 642808540842 squared (642808540842²) is 413202820179421182068964
• 642808540842 cubed (642808540842³) is 265610301911333042681897563454627688
• The square root of 642808540842 is 801753.4164828985
• The cube root of 642808540842 is 8630.3262357701

Scales and comparisons

• 642,808,540,842 seconds is equal to 20,439 years, 16 weeks, 5 days, 16 hours, 42 seconds.
• To count from 1 to 642,808,540,842 would take you about forty thousand, eight hundred seventy-eight 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 642808540842 cubic inches would be around 719.2 feet tall.

Recreational maths with 642808540842

• 642808540842 backwards is 248045808246
• The number of decimal digits it has is: 12
• The sum of 642808540842's digits is 51
• More coming soon!