991428189640833

Names of 991428189640833

• Cardinal: 991428189640833 can be written as Nine hundred ninety-one trillion, four hundred twenty-eight billion, one hundred eighty-nine million, six hundred forty thousand, eight hundred thirty-three.

Scientific notation

• Scientific notation: 9.91428189640833 × 10¹⁴

Factors of 991428189640833

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 82943948

Divisors of 991428189640833

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 21 31 43 49 61 93 129 147 183 217 301 427 651 903 1281 1333 1519 1891 2107 2623 2989 3999 4557 5673 6321 7869 8967 9331 13237 18361 27993 39711 55083 65317 81313 92659 128527 195951 243939 277977 385581 569191 1707573 3984337 11953011 82943803 248831409 580606621 1741819863 2571257893 3566583529 4064246347 5059571983 7713773679 10699750587 12192739041 15178715949 17998805251 24966084703 35417003881 53996415753 74898254109 106251011643 110564089399 125991636757 156846731473 174762592921 217561595269 247919027167 331692268197 377974910271 470540194419 524287778763 652684785807 743757081501 773948625793 1097927120311 1522931166883 2321845877379 3293781360933 4568793500649 5417640380551 6744409453339 7685489842177 10660518168181 16252921141653 20233228360017 23056469526531 31981554504543 47210866173373 141632598520119 330476063213611 991428189640833
• Sum of all divisors σ(n): 1650871007588352
• Sum of proper divisors (its aliquot sum) s(n): 659442817947519
• 991428189640833 is a deficient number, because the sum of its proper divisors (659442817947519) is less than itself. Its deficiency is 331985371693314

Bases of 991428189640833

• Binary: 11100001011011001011011101000100000101100010000001₂
• Hexadecimal: 0x385B2DD105881
• Base-36: 9RFJTM70JL

Squares and roots of 991428189640833

• 991428189640833 squared (991428189640833²) is 982929855214499522693540933889
• 991428189640833 cubed (991428189640833³) is 974504366899237356232095062709209914307889537
• The square root of 991428189640833 is 31486952.6890239571
• The cube root of 991428189640833 is 99713.4526786279

Scales and comparisons

• 991,428,189,640,833 seconds is equal to 31,524,349 years, 38 weeks, 4 days, 40 minutes, 33 seconds.
• To count from 1 to 991,428,189,640,833 would take you about seventy-eight million, eight hundred ten thousand, eight 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 991428189640833 cubic inches would be around 8309.5 feet tall.

Recreational maths with 991428189640833

• 991428189640833 backwards is 338046981824199
• The number of decimal digits it has is: 15
• The sum of 991428189640833's digits is 75
• More coming soon!