82121807988

Names of 82121807988

• Cardinal: 82121807988 can be written as Eighty-two billion, one hundred twenty-one million, eight hundred seven thousand, nine hundred eighty-eight.

Scientific notation

• Scientific notation: 8.2121807988 × 10¹⁰

Factors of 82121807988

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 169896

Divisors of 82121807988

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 9 11 12 18 22 27 33 36 37 44 54 66 74 99 108 111 121 132 148 198 222 242 297 333 363 396 407 444 484 594 666 726 814 999 1089 1188 1221 1332 1452 1628 1998 2178 2442 3267 3663 3996 4356 4477 4884 6534 7326 8954 10989 13068 13431 14652 17908 21978 26862 40293 43956 53724 80586 120879 161172 169843 241758 339686 483516 509529 679372 1019058 1528587 1868273 2038116 3057174 3736546 4585761 5604819 6114348 6284191 7473092 9171522 11209638 12568382 16814457 18343044 18852573 20551003 22419276 25136764 33628914 37705146 41102006 50443371 56557719 61653009 67257828 69126101 75410292 82204012 100886742 113115438 123306018 138252202 169673157 184959027 201773484 207378303 226230876 246612036 276504404 339346314 369918054 414756606 554877081 622134909 678692628 739836108 760387111 829513212 1109754162 1244269818 1520774222 1866404727 2219508324 2281161333 2488539636 3041548444 3732809454 4562322666 6843483999 7465618908 9124645332 13686967998 20530451997 27373935996 41060903994 82121807988
• Sum of all divisors σ(n): 240349641280
• Sum of proper divisors (its aliquot sum) s(n): 158227833292
• 82121807988 is an abundant number, because the sum of its proper divisors (158227833292) is greater than itself. Its abundance is 76106025304

Bases of 82121807988

• Binary: 1001100011110110101110101100001110100₂
• Hexadecimal: 0x131ED75874
• Base-36: 11Q57CL0

Squares and roots of 82121807988

• 82121807988 squared (82121807988²) is 6743991347217940608144
• 82121807988 cubed (82121807988³) is 553828762488965156610789517054272
• The square root of 82121807988 is 286569.0283125515
• The cube root of 82121807988 is 4346.6316106983

Scales and comparisons

• 82,121,807,988 seconds is equal to 2,611 years, 11 weeks, 2 days, 21 hours, 19 minutes, 48 seconds.
• To count from 1 to 82,121,807,988 would take you about five thousand, two hundred twenty-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 82121807988 cubic inches would be around 362.2 feet tall.

Recreational maths with 82121807988

• 82121807988 backwards is 88970812128
• 82121807988 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 82121807988's digits is 54
• More coming soon!