642027631815165987

Names of 642027631815165987

• Cardinal: 642027631815165987 can be written as Six hundred forty-two quadrillion, twenty-seven trillion, six hundred thirty-one billion, eight hundred fifteen million, one hundred sixty-five thousand, nine hundred eighty-seven.

Scientific notation

• Scientific notation: 6.42027631815165987 × 10¹⁷

Factors of 642027631815165987

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1341

Divisors of 642027631815165987

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 9 27 269 807 1069 2421 3207 7263 9621 28863 72361 217083 287561 651249 862683 1142761 1953747 2588049 3428283 7764147 10284849 19465109 30854547 58395327 77353909 175185981 232061727 307402709 525557943 696185181 922208127 1221611509 2088555543 2766624381 3664834527 8299873143 10994503581 20808201521 32983510743 62424604563 82691328721 187273813689 248073986163 328613495921 561821441067 744221958489 985840487763 2232665875467 2957521463289 8872564389867 22243967425949 66731902277847 88397030402749 200195706833541 265191091208247 600587120500623 795573273624741 2386719820874223 23778801178339481 71336403535018443 214009210605055329 642027631815165987
• Sum of all divisors σ(n): 955595036661264000
• Sum of proper divisors (its aliquot sum) s(n): 313567404846098013
• 642027631815165987 is a deficient number, because the sum of its proper divisors (313567404846098013) is less than itself. Its deficiency is 328460226969067974

Bases of 642027631815165987

• Binary: 100011101000111100001011101011000010010101000000100000100011₂
• Hexadecimal: 0x8E8F0BAC2540823
• Base-36: 4VLNSUBCJ1UR

Squares and roots of 642027631815165987

• 642027631815165987 squared (642027631815165987²) is 412199480014190336675269180361684169
• 642027631815165987 cubed (642027631815165987³) is 264643455988953464205369727956681910093486931605159803
• The square root of 642027631815165987 is 801266267.7382381777
• 642027631815165987 is a perfect cube number. Its cube root is 862683

Scales and comparisons

• 642,027,631,815,165,987 seconds is equal to 20,414,492,769 years, 45 weeks, 2 hours, 6 minutes, 27 seconds.
• To count from 1 to 642,027,631,815,165,987 would take you about sixty-one billion, two hundred forty-three million, four hundred seventy-eight thousand, three hundred 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 642027631815165987 cubic inches would be around 71890.3 feet tall.

Recreational maths with 642027631815165987

• 642027631815165987 backwards is 789561518136720246
• The number of decimal digits it has is: 18
• The sum of 642027631815165987's digits is 81
• More coming soon!