989478035921221

Names of 989478035921221

• Cardinal: 989478035921221 can be written as Nine hundred eighty-nine trillion, four hundred seventy-eight billion, thirty-five million, nine hundred twenty-one thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 9.89478035921221 × 10¹⁴

Factors of 989478035921221

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 644859

Divisors of 989478035921221

• Number of divisors d(n): 48
• Complete list of divisors:
  1 7 11 43 77 121 301 473 847 3311 5203 36421 45319 317233 498509 599479 1948717 3489563 4196353 5483599 6594269 13641019 21435887 25777597 38385193 46159883 72536959 150051209 180443179 235794757 283553567 507758713 1650563299 1984874969 3119089237 21833624659 27167788801 190174521607 298845676811 1168214918443 2091919737677 3287302444921 8177504429101 12850364102873 23011117114447 89952548720111 141354005131603 989478035921221
• Sum of all divisors σ(n): 1271917387417600
• Sum of proper divisors (its aliquot sum) s(n): 282439351496379
• 989478035921221 is a deficient number, because the sum of its proper divisors (282439351496379) is less than itself. Its deficiency is 707038684424842

Bases of 989478035921221

• Binary: 11100000111110110011001110110110000001100101000101₂
• Hexadecimal: 0x383ECCED81945
• Base-36: 9QQNXN0S3P

Squares and roots of 989478035921221

• 989478035921221 squared (989478035921221²) is 979066783570517115610118130841
• 989478035921221 cubed (989478035921221³) is 968765078043062440915382861981894212046476861
• The square root of 989478035921221 is 31455969.7978177267
• The cube root of 989478035921221 is 99648.0304921251

Scales and comparisons

• 989,478,035,921,221 seconds is equal to 31,462,340 years, 46 weeks, 10 hours, 7 minutes, 1 second.
• To count from 1 to 989,478,035,921,221 would take you about seventy-eight million, six hundred fifty-five thousand, eight hundred fifty-two 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 989478035921221 cubic inches would be around 8304 feet tall.

Recreational maths with 989478035921221

• 989478035921221 backwards is 122129530874989
• The number of decimal digits it has is: 15
• The sum of 989478035921221's digits is 70
• More coming soon!