81731714148

Names of 81731714148

• Cardinal: 81731714148 can be written as Eighty-one billion, seven hundred thirty-one million, seven hundred fourteen thousand, one hundred forty-eight.

Scientific notation

• Scientific notation: 8.1731714148 × 10¹⁰

Factors of 81731714148

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1162524

Divisors of 81731714148

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 27 28 31 36 42 54 62 63 81 84 93 108 124 126 162 186 189 217 252 279 324 372 378 434 558 567 651 756 837 868 1116 1134 1302 1674 1953 2268 2511 2604 3348 3906 5022 5859 7812 10044 11718 17577 23436 35154 70308 1162481 2324962 3487443 4649924 6974886 8137367 10462329 13949772 16274734 20924658 24412101 31386987 32549468 36036911 41849316 48824202 62773974 72073822 73236303 94160961 97648404 108110733 125547948 144147644 146472606 188321922 216221466 219708909 252258377 292945212 324332199 376643844 432442932 439417818 504516754 648664398 659126727 756775131 878835636 972996597 1009033508 1297328796 1318253454 1513550262 1945993194 2270325393 2636506908 2918989791 3027100524 3891986388 4540650786 5837979582 6810976179 9081301572 11675959164 13621952358 20432928537 27243904716 40865857074 81731714148
• Sum of all divisors σ(n): 252063297024
• Sum of proper divisors (its aliquot sum) s(n): 170331582876
• 81731714148 is an abundant number, because the sum of its proper divisors (170331582876) is greater than itself. Its abundance is 88599868728

Bases of 81731714148

• Binary: 1001100000111100101101111110001100100₂
• Hexadecimal: 0x130796FC64
• Base-36: 11JOYA90

Squares and roots of 81731714148

• 81731714148 squared (81731714148²) is 6680073097570383365904
• 81731714148 cubed (81731714148³) is 545973824898367486572839817609792
• The square root of 81731714148 is 285887.5900559519
• The cube root of 81731714148 is 4339.7382484227

Scales and comparisons

• 81,731,714,148 seconds is equal to 2,598 years, 42 weeks, 2 days, 21 hours, 55 minutes, 48 seconds.
• To count from 1 to 81,731,714,148 would take you about five thousand, one hundred ninety-seven 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 81731714148 cubic inches would be around 361.6 feet tall.

Recreational maths with 81731714148

• 81731714148 backwards is 84141713718
• The number of decimal digits it has is: 11
• The sum of 81731714148's digits is 45
• More coming soon!