821272882942440138

Names of 821272882942440138

• Cardinal: 821272882942440138 can be written as Eight hundred twenty-one quadrillion, two hundred seventy-two trillion, eight hundred eighty-two billion, nine hundred forty-two million, four hundred forty thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 8.21272882942440138 × 10¹⁷

Factors of 821272882942440138

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 7758904555

Divisors of 821272882942440138

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 7 14 19 21 38 42 49 57 98 114 133 147 266 294 343 399 686 798 931 1029 1862 2058 2707 2793 5414 5586 6517 8121 13034 16242 18949 19551 37898 39102 51433 56847 102866 113694 132643 154299 265286 308598 360031 397929 720062 795858 928501 1080093 1857002 2160186 2520217 2785503 5040434 5571006 7560651 15121302 17641519 35283038 52924557 105849114 7758901817 15517803634 23276705451 46553410902 54312312719 108624625438 147419134523 162936938157 294838269046 325873876314 380186189033 442257403569 760372378066 884514807138 1031933941661 1140558567099 2063867883322 2281117134198 2661303323231 3095801824983 5322606646462 6191603649966 7223537591627 7983909969693 14447075183254 15967819939386 21003347218619 21670612774881 42006694437238 43341225549762 50564763141389 63010041655857 101129526282778 126020083311714 147023430530333 151694289424167 294046861060666 303388578848334 399063597153761 441070291590999 798127194307522 882140583181998 1029164013712331 1197190791461283 2058328027424662 2394381582922566 2793445180076327 3087492041136993 5586890360152654 6174984082273986 7204148095986317 8380335540228981 14408296191972634 16760671080457962 19554116260534289 21612444287958951 39108232521068578 43224888575917902 58662348781602867 117324697563205734 136878813823740023 273757627647480046 410636441471220069 821272882942440138
• Sum of all divisors σ(n): 2017066187821824000
• Sum of proper divisors (its aliquot sum) s(n): 1195793304879383862
• 821272882942440138 is an abundant number, because the sum of its proper divisors (1195793304879383862) is greater than itself. Its abundance is 374520421936943724

Bases of 821272882942440138

• Binary: 101101100101101111110101010111110011011100011111001011001010₂
• Hexadecimal: 0xB65BF55F371F2CA
• Base-36: 68MKXTWQGWJU

Squares and roots of 821272882942440138

• 821272882942440138 squared (821272882942440138²) is 674489148256586981383668845713459044
• 821272882942440138 cubed (821272882942440138³) is 553939647302078111647086354796934153155337857884708072
• The square root of 821272882942440138 is 906241073.3035885403
• The cube root of 821272882942440138 is 936474.2232780739

Scales and comparisons

• 821,272,882,942,440,138 seconds is equal to 26,113,937,313 years, 38 weeks, 6 days, 4 hours, 2 minutes, 18 seconds.
• To count from 1 to 821,272,882,942,440,138 would take you about seventy-eight billion, three hundred forty-one million, eight hundred eleven thousand, nine hundred forty-one 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 821272882942440138 cubic inches would be around 78039.5 feet tall.

Recreational maths with 821272882942440138

• 821272882942440138 backwards is 831044249288272128
• The number of decimal digits it has is: 18
• The sum of 821272882942440138's digits is 75
• More coming soon!