42132018978

Names of 42132018978

• Cardinal: 42132018978 can be written as Forty-two billion, one hundred thirty-two million, eighteen thousand, nine hundred seventy-eight.

Scientific notation

• Scientific notation: 4.2132018978 × 10¹⁰

Factors of 42132018978

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 672882

Divisors of 42132018978

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 42 49 63 71 98 126 142 147 213 294 426 441 497 639 882 994 1278 1491 2982 3479 4473 6958 8946 10437 20874 31311 62622 672799 1345598 2018397 4036794 4709593 6055191 9419186 12110382 14128779 28257558 32967151 42386337 47768729 65934302 84772674 95537458 98901453 143306187 197802906 286612374 296704359 334381103 429918561 593408718 668762206 859837122 1003143309 2006286618 2340667721 3009429927 4681335442 6018859854 7022003163 14044006326 21066009489 42132018978
• Sum of all divisors σ(n): 107685676800
• Sum of proper divisors (its aliquot sum) s(n): 65553657822
• 42132018978 is an abundant number, because the sum of its proper divisors (65553657822) is greater than itself. Its abundance is 23421638844

Bases of 42132018978

• Binary: 100111001111010000111001011100100010₂
• Hexadecimal: 0x9CF439722
• Base-36: JCSBDWI

Squares and roots of 42132018978

• 42132018978 squared (42132018978²) is 1775107023162552164484
• 42132018978 cubed (42132018978³) is 74788842787865733372954865577352
• The square root of 42132018978 is 205260.8559321529
• The cube root of 42132018978 is 3479.6649107593

Scales and comparisons

• 42,132,018,978 seconds is equal to 1,339 years, 34 weeks, 5 days, 2 hours, 36 minutes, 18 seconds.
• To count from 1 to 42,132,018,978 would take you about two thousand, six 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 42132018978 cubic inches would be around 290 feet tall.

Recreational maths with 42132018978

• 42132018978 backwards is 87981023124
• The number of decimal digits it has is: 11
• The sum of 42132018978's digits is 45
• More coming soon!