1491343227694181672

Names of 1491343227694181672

• Cardinal: 1491343227694181672 can be written as One quintillion, four hundred ninety-one quadrillion, three hundred forty-three trillion, two hundred twenty-seven billion, six hundred ninety-four million, one hundred eighty-one thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 1.491343227694181672 × 10¹⁸

Factors of 1491343227694181672

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 45170318264796

Divisors of 1491343227694181672

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 4 8 4127 8254 16508 33016 45170318260667 90340636521334 180681273042668 361362546085336 186417903461772709 372835806923545418 745671613847090836 1491343227694181672
• Sum of all divisors σ(n): 2796946106700562560
• Sum of proper divisors (its aliquot sum) s(n): 1305602879006380888
• 1491343227694181672 is a deficient number, because the sum of its proper divisors (1305602879006380888) is less than itself. Its deficiency is 185740348687800784

Bases of 1491343227694181672

• Binary: 1010010110010010100001100001110011100111001010110110100101000₂
• Hexadecimal: 0x14B250C39CE56D28
• Base-36: BBWD1WP81L48

Squares and roots of 1491343227694181672

• 1491343227694181672 squared (1491343227694181672²) is 2224104622789299799171359281740715584
• 1491343227694181672 cubed (1491343227694181672³) is 3316903366880144769317472315505639357043238582577576448
• The square root of 1491343227694181672 is 1221205645.1286907117
• The cube root of 1491343227694181672 is 1142507.8747437331

Scales and comparisons

• 1,491,343,227,694,181,672 seconds is equal to 47,420,101,613 years, 9 weeks, 6 days, 4 hours, 14 minutes, 32 seconds.
• To count from 1 to 1,491,343,227,694,181,672 would take you about one hundred sixty-five billion, nine hundred seventy million, three hundred fifty-five thousand, six hundred forty-six 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 1491343227694181672 cubic inches would be around 95209 feet tall.

Recreational maths with 1491343227694181672

• 1491343227694181672 backwards is 2761814967223431941
• The number of decimal digits it has is: 19
• The sum of 1491343227694181672's digits is 80
• More coming soon!