31438603911

Names of 31438603911

• Cardinal: 31438603911 can be written as Thirty-one billion, four hundred thirty-eight million, six hundred three thousand, nine hundred eleven.

Scientific notation

• Scientific notation: 3.1438603911 × 10¹⁰

Factors of 31438603911

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 2104

Divisors of 31438603911

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 11 13 33 39 73 143 219 429 803 949 991 1013 2409 2847 2973 3039 10439 10901 11143 12883 13169 31317 32703 33429 38649 39507 72343 73949 141713 144859 217029 221847 425139 434577 795773 813439 940459 961337 1003883 2387319 2440317 2821377 2884011 3011649 10345049 10574707 11042713 13050479 31035147 31724121 33128139 39151437 73283459 143555269 219850377 430665807 806118049 952684967 2418354147 2858054901 10479534637 31438603911
• Sum of all divisors σ(n): 50020798464
• Sum of proper divisors (its aliquot sum) s(n): 18582194553
• 31438603911 is a deficient number, because the sum of its proper divisors (18582194553) is less than itself. Its deficiency is 12856409358

Bases of 31438603911

• Binary: 11101010001111000110000011010000111₂
• Hexadecimal: 0x751E30687
• Base-36: EFXQE13

Squares and roots of 31438603911

• 31438603911 squared (31438603911²) is 988385815872744495921
• 31438603911 cubed (31438603911³) is 31073470176473790987765674147031
• The square root of 31438603911 is 177309.3452444061
• The cube root of 31438603911 is 3156.1266136409

Scales and comparisons

• 31,438,603,911 seconds is equal to 999 years, 33 weeks, 5 days, 17 hours, 31 minutes, 51 seconds.
• To count from 1 to 31,438,603,911 would take you about one thousand, nine hundred ninety-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 31438603911 cubic inches would be around 263 feet tall.

Recreational maths with 31438603911

• 31438603911 backwards is 11930683413
• 31438603911 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 31438603911's digits is 39
• More coming soon!