421900912521

Names of 421900912521

• Cardinal: 421900912521 can be written as Four hundred twenty-one billion, nine hundred million, nine hundred twelve thousand, five hundred twenty-one.

Scientific notation

• Scientific notation: 4.21900912521 × 10¹¹

Factors of 421900912521

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 22
• Sum of prime factors: 14

Divisors of 421900912521

• Number of divisors d(n): 63
• Complete list of divisors:
  1 3 9 11 27 33 81 99 121 243 297 363 729 891 1089 2187 2673 3267 6561 8019 9801 19683 24057 29403 59049 72171 88209 177147 216513 264627 531441 649539 793881 1594323 1948617 2381643 4782969 5845851 7144929 14348907 17537553 21434787 43046721 52612659 64304361 129140163 157837977 192913083 387420489 473513931 578739249 1162261467 1420541793 1736217747 3486784401 4261625379 5208653241 12784876137 15625959723 38354628411 46877879169 140633637507 421900912521
• Sum of all divisors σ(n): 695613487933
• Sum of proper divisors (its aliquot sum) s(n): 273712575412
• 421900912521 is a deficient number, because the sum of its proper divisors (273712575412) is less than itself. Its deficiency is 148188337109

Bases of 421900912521

• Binary: 110001000111011010000010000011110001001₂
• Hexadecimal: 0x623B410789
• Base-36: 5DTGWRK9

Squares and roots of 421900912521

• 421900912521 squared (421900912521²) is 178000379986052494575441
• 421900912521 cubed (421900912521³) is 75098522745200292713986960375996761
• 421900912521 is a perfect square number. Its square root is 649539
• The cube root of 421900912521 is 7500.1535525361

Scales and comparisons

• 421,900,912,521 seconds is equal to 13,415 years, 7 weeks, 3 days, 9 hours, 55 minutes, 21 seconds.
• To count from 1 to 421,900,912,521 would take you about twenty-six thousand, eight hundred thirty 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 421900912521 cubic inches would be around 625 feet tall.

Recreational maths with 421900912521

• 421900912521 backwards is 125219009124
• The number of decimal digits it has is: 12
• The sum of 421900912521's digits is 36
• More coming soon!