138539742018763679

Names of 138539742018763679

• Cardinal: 138539742018763679 can be written as One hundred thirty-eight quadrillion, five hundred thirty-nine trillion, seven hundred forty-two billion, eighteen million, seven hundred sixty-three thousand, six hundred seventy-nine.

Scientific notation

• Scientific notation: 1.38539742018763679 × 10¹⁷

Factors of 138539742018763679

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 10739756351

Divisors of 138539742018763679

• Number of divisors d(n): 32
• Complete list of divisors:
  1 11 23 67 253 737 761 1541 8371 16951 17503 50987 192533 560857 1172701 12899711 10739755489 118137310379 247014376247 719563617763 2717158138717 7915199795393 8172953927129 16549963208549 89902493198419 182049595294039 187977940323967 547587913117643 2067757343563637 6023467044294073 12594522001705789 138539742018763679
• Sum of all divisors σ(n): 160269457095313920
• Sum of proper divisors (its aliquot sum) s(n): 21729715076550241
• 138539742018763679 is a deficient number, because the sum of its proper divisors (21729715076550241) is less than itself. Its deficiency is 116810026942213438

Bases of 138539742018763679

• Binary: 111101100001100010010100101001110010011010111101110011111₂
• Hexadecimal: 0x1EC31294E4D7B9F
• Base-36: 11W48MV3U07Z

Squares and roots of 138539742018763679

• 138539742018763679 squared (138539742018763679²) is 19193260118625594495613711649615041
• 138539742018763679 cubed (138539742018763679³) is 2659029305333415427848336319899924772851359102895839
• The square root of 138539742018763679 is 372209271.8065519643
• The cube root of 138539742018763679 is 517437.7679839383

Scales and comparisons

• 138,539,742,018,763,679 seconds is equal to 4,405,135,264 years, 33 weeks, 1 day, 6 hours, 47 minutes, 59 seconds.
• To count from 1 to 138,539,742,018,763,679 would take you about thirteen billion, two hundred fifteen million, four hundred five thousand, seven hundred ninety-three 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 138539742018763679 cubic inches would be around 43119.8 feet tall.

Recreational maths with 138539742018763679

• 138539742018763679 backwards is 976367810247935831
• The number of decimal digits it has is: 18
• The sum of 138539742018763679's digits is 89
• More coming soon!