991445643027

Names of 991445643027

• Cardinal: 991445643027 can be written as Nine hundred ninety-one billion, four hundred forty-five million, six hundred forty-three thousand and twenty-seven.

Scientific notation

• Scientific notation: 9.91445643027 × 10¹¹

Factors of 991445643027

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1783

Divisors of 991445643027

• Number of divisors d(n): 120
• Complete list of divisors:
  1 3 7 9 19 21 27 31 57 63 81 93 133 171 189 217 279 399 513 567 589 651 837 1197 1539 1723 1767 1953 2511 3591 4123 5169 5301 5859 10773 12061 12369 15507 15903 17577 32737 36183 37107 46521 47709 53413 98211 108549 111321 139563 160239 229159 294633 325647 333963 373891 480717 687477 883899 976941 1014847 1121673 1442151 2062431 2651697 2968729 3044541 3365019 4326453 6187293 7103929 8906187 9133623 10095057 18561879 20781103 21311787 26718561 27400869 30285171 56405851 62343309 63935361 80155683 82202607 92030599 169217553 187029927 191806083 240467049 276091797 394840957 507652659 561089781 575418249 644214193 828275391 1184522871 1522957977 1683269343 1748581381 1932642579 2484826173 3553568613 4568873931 5245744143 5797927737 7454478519 10660705839 12240069667 15737232429 17393783211 31982117517 36720209001 47211697287 52181349633 110160627003 141635091861 330481881009 991445643027
• Sum of all divisors σ(n): 1840255042560
• Sum of proper divisors (its aliquot sum) s(n): 848809399533
• 991445643027 is a deficient number, because the sum of its proper divisors (848809399533) is less than itself. Its deficiency is 142636243494

Bases of 991445643027

• Binary: 1110011011010110110000111110111100010011₂
• Hexadecimal: 0xE6D6C3EF13
• Base-36: CNGP4Y6R

Squares and roots of 991445643027

• 991445643027 squared (991445643027²) is 982964463077221513722729
• 991445643027 cubed (991445643027³) is 974555834168285682829349357990260683
• The square root of 991445643027 is 995713.6350512631
• The cube root of 991445643027 is 9971.4037803267

Scales and comparisons

• 991,445,643,027 seconds is equal to 31,524 years, 47 weeks, 7 hours, 30 minutes, 27 seconds.
• To count from 1 to 991,445,643,027 would take you about sixty-three thousand and forty-nine 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 991445643027 cubic inches would be around 831 feet tall.

Recreational maths with 991445643027

• 991445643027 backwards is 720346544199
• The number of decimal digits it has is: 12
• The sum of 991445643027's digits is 54
• More coming soon!