81363818032

Names of 81363818032

• Cardinal: 81363818032 can be written as Eighty-one billion, three hundred sixty-three million, eight hundred eighteen thousand and thirty-two.

Scientific notation

• Scientific notation: 8.1363818032 × 10¹⁰

Factors of 81363818032

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 371

Divisors of 81363818032

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 7 8 14 16 28 56 112 151 211 302 422 604 844 1057 1208 1477 1688 2114 2416 2954 3376 4228 5908 8456 11816 16912 22801 23632 31861 45602 63722 91204 127444 159607 182408 223027 254888 319214 364816 446054 509776 638428 892108 1276856 1784216 2553712 3442951 3568432 4811011 6885902 9622022 13771804 19244044 24100657 27543608 33677077 38488088 48201314 55087216 67354154 76976176 96402628 134708308 192805256 269416616 385610512 538833232 726462661 1452925322 2905850644 5085238627 5811701288 10170477254 11623402576 20340954508 40681909016 81363818032
• Sum of all divisors σ(n): 182223368704
• Sum of proper divisors (its aliquot sum) s(n): 100859550672
• 81363818032 is an abundant number, because the sum of its proper divisors (100859550672) is greater than itself. Its abundance is 19495732640

Bases of 81363818032

• Binary: 1001011110001101010010101011000110000₂
• Hexadecimal: 0x12F1A95630
• Base-36: 11DLWZSG

Squares and roots of 81363818032

• 81363818032 squared (81363818032²) is 6620070884744408353024
• 81363818032 cubed (81363818032³) is 538634242825285286064945552928768
• The square root of 81363818032 is 285243.4364398241
• The cube root of 81363818032 is 4333.2170165123

Scales and comparisons

• 81,363,818,032 seconds is equal to 2,587 years, 6 weeks, 20 hours, 33 minutes, 52 seconds.
• To count from 1 to 81,363,818,032 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 81363818032 cubic inches would be around 361.1 feet tall.

Recreational maths with 81363818032

• 81363818032 backwards is 23081836318
• The number of decimal digits it has is: 11
• The sum of 81363818032's digits is 43
• More coming soon!