81620827106

Names of 81620827106

• Cardinal: 81620827106 can be written as Eighty-one billion, six hundred twenty million, eight hundred twenty-seven thousand, one hundred six.

Scientific notation

• Scientific notation: 8.1620827106 × 10¹⁰

Factors of 81620827106

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 283

Divisors of 81620827106

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 7 13 14 26 61 73 91 122 127 146 169 182 254 338 427 511 793 854 889 949 1022 1183 1586 1651 1778 1898 2366 3302 3721 4453 5551 6643 7442 7747 8906 9271 10309 11102 11557 12337 13286 15494 18542 20618 21463 23114 24674 26047 31171 42926 48373 52094 54229 57889 62342 64897 72163 86359 96746 100711 108458 115778 120523 129794 144326 150241 172718 201422 241046 271633 300482 338611 405223 472567 543266 565531 628849 677222 704977 752557 810446 843661 945134 1131062 1257698 1309243 1409954 1505114 1566799 1687322 1901431 2618486 3133598 3307969 3531229 3802862 3958717 4401943 5267899 6143371 6615938 7062458 7351903 7917434 8803886 9164701 10535798 10967593 12286742 14703806 18329402 21935186 24718603 34497391 43003597 45905977 49437206 51463321 68994782 79863823 86007194 91811954 95574739 102926642 159727646 191149478 241481737 321341839 448466083 482963474 559046761 642683678 669023173 896932166 1118093522 1338046346 3139262581 5830059079 6278525162 11660118158 40810413553 81620827106
• Sum of all divisors σ(n): 157376673792
• Sum of proper divisors (its aliquot sum) s(n): 75755846686
• 81620827106 is a deficient number, because the sum of its proper divisors (75755846686) is less than itself. Its deficiency is 5864980420

Bases of 81620827106

• Binary: 1001100000000111110101111101111100010₂
• Hexadecimal: 0x1300FAFBE2
• Base-36: 11HUXL9E

Squares and roots of 81620827106

• 81620827106 squared (81620827106²) is 6661959417467544335236
• 81620827106 cubed (81620827106³) is 543754637800306912552687259707016
• The square root of 81620827106 is 285693.5895430627
• The cube root of 81620827106 is 4337.7747571231

Scales and comparisons

• 81,620,827,106 seconds is equal to 2,595 years, 15 weeks, 11 hours, 58 minutes, 26 seconds.
• To count from 1 to 81,620,827,106 would take you about five thousand, one hundred ninety 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 81620827106 cubic inches would be around 361.5 feet tall.

Recreational maths with 81620827106

• 81620827106 backwards is 60172802618
• The number of decimal digits it has is: 11
• The sum of 81620827106's digits is 41
• More coming soon!