421251637799858121

Names of 421251637799858121

• Cardinal: 421251637799858121 can be written as Four hundred twenty-one quadrillion, two hundred fifty-one trillion, six hundred thirty-seven billion, seven hundred ninety-nine million, eight hundred fifty-eight thousand, one hundred twenty-one.

Scientific notation

• Scientific notation: 4.21251637799858121 × 10¹⁷

Factors of 421251637799858121

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 165345

Divisors of 421251637799858121

• Number of divisors d(n): 18
• Complete list of divisors:
  1 3 9 1319 3957 11871 164023 492069 1476207 216346337 649039011 1947117033 26903544529 80710633587 242131900761 35485775233751 106457325701253 319371977103759
• Sum of all divisors σ(n): 421393933461523842
• Sum of proper divisors (its aliquot sum) s(n): 142295661665721
• 421251637799858121 is a deficient number, because the sum of its proper divisors (142295661665721) is less than itself. Its deficiency is 421109342138192400

Bases of 421251637799858121

• Binary: 10111011000100101100010000111111000000111001010111111001001₂
• Hexadecimal: 0x5D89621F81CAFC9
• Base-36: 377T8QTR2409

Squares and roots of 421251637799858121

• 421251637799858121 squared (421251637799858121²) is 177452942349062855317761167729650641
• 421251637799858121 cubed (421251637799858121³) is 74752342596946530251743788646506211506353514696705561
• 421251637799858121 is a perfect square number. Its square root is 649039011
• The cube root of 421251637799858121 is 749630.4180865543

Scales and comparisons

• 421,251,637,799,858,121 seconds is equal to 13,394,499,065 years, 8 weeks, 4 days, 13 hours, 55 minutes, 21 seconds.
• To count from 1 to 421,251,637,799,858,121 would take you about forty billion, one hundred eighty-three million, four hundred ninety-seven thousand, one hundred ninety-five 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 421251637799858121 cubic inches would be around 62469.2 feet tall.

Recreational maths with 421251637799858121

• 421251637799858121 backwards is 121858997736152124
• The number of decimal digits it has is: 18
• The sum of 421251637799858121's digits is 81
• More coming soon!