31791643842

Names of 31791643842

• Cardinal: 31791643842 can be written as Thirty-one billion, seven hundred ninety-one million, six hundred forty-three thousand, eight hundred forty-two.

Scientific notation

• Scientific notation: 3.1791643842 × 10¹⁰

Factors of 31791643842

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 306696

Divisors of 31791643842

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 6 7 14 21 42 49 98 147 294 353 706 1059 2118 2471 4942 7413 14826 17297 34594 51891 103782 306331 612662 918993 1837986 2144317 4288634 6432951 12865902 15010219 30020438 45030657 90061314 108134843 216269686 324404529 648809058 756943901 1513887802 2270831703 4541663406 5298607307 10597214614 15895821921 31791643842
• Sum of all divisors σ(n): 74174005152
• Sum of proper divisors (its aliquot sum) s(n): 42382361310
• 31791643842 is an abundant number, because the sum of its proper divisors (42382361310) is greater than itself. Its abundance is 10590717468

Bases of 31791643842

• Binary: 11101100110111011011111110011000010₂
• Hexadecimal: 0x766EDFCC2
• Base-36: ELRX9DU

Squares and roots of 31791643842

• 31791643842 squared (31791643842²) is 1010708618176576520964
• 31791643842 cubed (31791643842³) is 32132088417109688221346934503688
• The square root of 31791643842 is 178302.1139583039
• The cube root of 31791643842 is 3167.8965782465

Scales and comparisons

• 31,791,643,842 seconds is equal to 1,010 years, 45 weeks, 3 days, 20 hours, 10 minutes, 42 seconds.
• To count from 1 to 31,791,643,842 would take you about two thousand and twenty-one 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 31791643842 cubic inches would be around 264 feet tall.

Recreational maths with 31791643842

• 31791643842 backwards is 24834619713
• The number of decimal digits it has is: 11
• The sum of 31791643842's digits is 48
• More coming soon!