861387112529330121

Names of 861387112529330121

• Cardinal: 861387112529330121 can be written as Eight hundred sixty-one quadrillion, three hundred eighty-seven trillion, one hundred twelve billion, five hundred twenty-nine million, three hundred thirty thousand, one hundred twenty-one.

Scientific notation

• Scientific notation: 8.61387112529330121 × 10¹⁷

Factors of 861387112529330121

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 3400350988858

Divisors of 861387112529330121

• Number of divisors d(n): 24
• Complete list of divisors:
  1 3 7 9 21 63 4021 12063 28147 36189 84441 253323 3400350984827 10201052954481 23802456893789 30603158863443 71407370681367 214222112044101 13672811309989367 41018433929968101 95709679169925569 123055301789904303 287129037509776707 861387112529330121
• Sum of all divisors σ(n): 1422326012741734464
• Sum of proper divisors (its aliquot sum) s(n): 560938900212404343
• 861387112529330121 is a deficient number, because the sum of its proper divisors (560938900212404343) is less than itself. Its deficiency is 300448212316925778

Bases of 861387112529330121

• Binary: 101111110100010000110000001111011000011010001111111111001001₂
• Hexadecimal: 0xBF44303D868FFC9
• Base-36: 6JLK8WKRSDS9

Squares and roots of 861387112529330121

• 861387112529330121 squared (861387112529330121²) is 741987757631616832725791480997874641
• 861387112529330121 cubed (861387112529330121³) is 639138692078410852959919023223342079606400976463361561
• The square root of 861387112529330121 is 928109429.1781169707
• The cube root of 861387112529330121 is 951479.5458839729

Scales and comparisons

• 861,387,112,529,330,121 seconds is equal to 27,389,445,733 years, 7 weeks, 6 days, 5 hours, 55 minutes, 21 seconds.
• To count from 1 to 861,387,112,529,330,121 would take you about eighty-two billion, one hundred sixty-eight million, three hundred thirty-seven thousand, one hundred ninety-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 861387112529330121 cubic inches would be around 79290 feet tall.

Recreational maths with 861387112529330121

• 861387112529330121 backwards is 121033925211783168
• 861387112529330121 is a Harshad number.
• The number of decimal digits it has is: 18
• The sum of 861387112529330121's digits is 63
• More coming soon!