81370348164

Names of 81370348164

• Cardinal: 81370348164 can be written as Eighty-one billion, three hundred seventy million, three hundred forty-eight thousand, one hundred sixty-four.

Scientific notation

• Scientific notation: 8.1370348164 × 10¹⁰

Factors of 81370348164

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 5541

Divisors of 81370348164

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 28 36 42 53 63 84 106 126 159 212 252 318 371 477 636 742 954 1113 1484 1553 1908 2226 3106 3339 3923 4452 4659 6212 6678 7846 9318 10871 11769 13356 13977 15692 18636 21742 23538 27461 27954 32613 35307 43484 47076 54922 55908 65226 70614 82309 82383 97839 109844 130452 141228 164618 164766 195678 207919 246927 247149 329236 329532 391356 415838 493854 494298 576163 623757 740781 831676 987708 988596 1152326 1247514 1455433 1481562 1728489 1871271 2304652 2495028 2910866 2963124 3456978 3742542 4366299 5185467 5821732 6092419 6913956 7485084 8732598 10370934 12184838 13098897 17465196 18277257 20741868 24369676 26197794 36554514 42646933 52395588 54831771 73109028 85293866 109663542 127940799 170587732 219327084 255881598 322898207 383822397 511763196 645796414 767644794 968694621 1291592828 1535289588 1937389242 2260287449 2906083863 3874778484 4520574898 5812167726 6780862347 9041149796 11624335452 13561724694 20342587041 27123449388 40685174082 81370348164
• Sum of all divisors σ(n): 239720487552
• Sum of proper divisors (its aliquot sum) s(n): 158350139388
• 81370348164 is an abundant number, because the sum of its proper divisors (158350139388) is greater than itself. Its abundance is 76979791224

Bases of 81370348164

• Binary: 1001011110010000011001111101010000100₂
• Hexadecimal: 0x12F20CFA84
• Base-36: 11DPSYH0

Squares and roots of 81370348164

• 81370348164 squared (81370348164²) is 6621133560330578170896
• 81370348164 cubed (81370348164³) is 538763943044444044701225811834944
• The square root of 81370348164 is 285254.8828048349
• The cube root of 81370348164 is 4333.3329391373

Scales and comparisons

• 81,370,348,164 seconds is equal to 2,587 years, 16 weeks, 6 days, 10 hours, 29 minutes, 24 seconds.
• To count from 1 to 81,370,348,164 would take you about five thousand, one hundred seventy-four 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 81370348164 cubic inches would be around 361.1 feet tall.

Recreational maths with 81370348164

• 81370348164 backwards is 46184307318
• The number of decimal digits it has is: 11
• The sum of 81370348164's digits is 45
• More coming soon!