642900505709549717

Names of 642900505709549717

• Cardinal: 642900505709549717 can be written as Six hundred forty-two quadrillion, nine hundred trillion, five hundred five billion, seven hundred nine million, five hundred forty-nine thousand, seven hundred seventeen.

Scientific notation

• Scientific notation: 6.42900505709549717 × 10¹⁷

Factors of 642900505709549717

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 11199

Divisors of 642900505709549717

• Number of divisors d(n): 128
• Complete list of divisors:
  1 7 17 119 401 467 1493 2807 3269 4093 4721 6817 7939 10451 25381 28651 33047 47719 55573 69581 80257 177667 187267 487067 561799 598693 697231 1310869 1641293 1893121 1911431 2204707 3183539 4190851 4880617 6110849 7048453 10177781 11489051 11852927 13251847 13380017 15432949 19323053 22284773 27901981 32183057 32494327 37480019 42775943 49339171 71244467 82970489 103884433 119823701 135261371 195313867 225281399 227460289 262360133 279589631 328491901 727191031 766483831 838765907 884087507 1957127417 2299443307 2450450449 2826429653 2853766483 3291627551 4753023727 5365386817 6188612549 7748544253 9023865751 13030225127 15029487619 17153153143 19785007571 19976365381 23041392857 28849318129 33271166089 41657657633 48049304101 48514030211 54239809771 55957668367 63167060257 91211575889 105206413333 131725252301 153405717767 201945226903 291603603431 336345128707 339598211477 391703678569 490438408193 922076766107 1073840024369 1144360359683 1319942647951 3433068857351 3618570166151 8010522517781 9239598535657 11568576569729 13472631566243 19454126114611 22439025015167 25329991163057 61515692824567 80980035988103 94308420963701 136178882802277 157073175106169 196665801685393 229034736626131 430609849771969 1376660611797751 1603243156382917 5402525258063443 37817676806444101 91842929387078531 642900505709549717
• Sum of all divisors σ(n): 782454003143574528
• Sum of proper divisors (its aliquot sum) s(n): 139553497434024811
• 642900505709549717 is a deficient number, because the sum of its proper divisors (139553497434024811) is less than itself. Its deficiency is 503347008275524906

Bases of 642900505709549717

• Binary: 100011101100000010101001101010001100101111001001100010010101₂
• Hexadecimal: 0x8EC0A9A8CBC9895
• Base-36: 4VU97J1OB4PH

Squares and roots of 642900505709549717

• 642900505709549717 squared (642900505709549717²) is 413321060241594768267274970894780089
• 642900505709549717 cubed (642900505709549717³) is 265724318649728539848952573214839957041619393927184813
• The square root of 642900505709549717 is 801810766.7707822175
• The cube root of 642900505709549717 is 863073.7788568863

Scales and comparisons

• 642,900,505,709,549,717 seconds is equal to 20,442,247,459 years, 38 weeks, 15 minutes, 17 seconds.
• To count from 1 to 642,900,505,709,549,717 would take you about sixty-one billion, three hundred twenty-six million, seven hundred forty-two thousand, three hundred seventy-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 642900505709549717 cubic inches would be around 71922.8 feet tall.

Recreational maths with 642900505709549717

• 642900505709549717 backwards is 717945907505009246
• The number of decimal digits it has is: 18
• The sum of 642900505709549717's digits is 80
• More coming soon!