31390668169

Names of 31390668169

• Cardinal: 31390668169 can be written as Thirty-one billion, three hundred ninety million, six hundred sixty-eight thousand, one hundred sixty-nine.

Scientific notation

• Scientific notation: 3.1390668169 × 10¹⁰

Factors of 31390668169

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1241

Divisors of 31390668169

• Number of divisors d(n): 64
• Complete list of divisors:
  1 7 31 37 49 73 217 259 343 511 1093 1147 1519 1813 2263 2701 3577 7651 8029 10633 12691 15841 18907 25039 33883 40441 53557 56203 79789 83731 110887 132349 237181 283087 374899 393421 558523 586117 776209 926443 1253671 1660267 1981609 2473459 2952193 3909661 4102819 8775697 11621869 13871263 17314213 20665351 27367627 28719733 61429879 91517983 121199491 144657457 430009153 640625881 848396437 1012602199 4484381167 31390668169
• Sum of all divisors σ(n): 39376998400
• Sum of proper divisors (its aliquot sum) s(n): 7986330231
• 31390668169 is a deficient number, because the sum of its proper divisors (7986330231) is less than itself. Its deficiency is 23404337938

Bases of 31390668169

• Binary: 11101001111000001111001010110001001₂
• Hexadecimal: 0x74F079589
• Base-36: EF56YKP

Squares and roots of 31390668169

• 31390668169 squared (31390668169²) is 985374048096269812561
• 31390668169 cubed (31390668169³) is 30931549766134251852794179070809
• The square root of 31390668169 is 177174.1182255467
• The cube root of 31390668169 is 3154.5217053351

Scales and comparisons

• 31,390,668,169 seconds is equal to 998 years, 6 weeks, 3 days, 22 hours, 2 minutes, 49 seconds.
• To count from 1 to 31,390,668,169 would take you about one thousand, nine hundred ninety-six 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 31390668169 cubic inches would be around 262.9 feet tall.

Recreational maths with 31390668169

• 31390668169 backwards is 96186609313
• The number of decimal digits it has is: 11
• The sum of 31390668169's digits is 52
• More coming soon!