155812169331

Names of 155812169331

• Cardinal: 155812169331 can be written as One hundred fifty-five billion, eight hundred twelve million, one hundred sixty-nine thousand, three hundred thirty-one.

Scientific notation

• Scientific notation: 1.55812169331 × 10¹¹

Factors of 155812169331

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1084

Divisors of 155812169331

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 7 9 13 21 39 63 91 117 169 273 507 819 1061 1183 1521 2197 3183 3549 6591 7427 9549 10647 13793 15379 19773 22281 41379 46137 66843 96551 124137 138411 179309 289653 537927 868959 1125721 1255163 1613781 2331017 3377163 3765489 6993051 7880047 10131489 11296467 14634373 16317119 20979153 23640141 43903119 48951357 70920423 102440611 131709357 146854071 190246849 307321833 570740547 921965499 1331727943 1712221641 2473209037 3995183829 7419627111 11985551487 17312463259 22258881333 51937389777 155812169331
• Sum of all divisors σ(n): 278901328160
• Sum of proper divisors (its aliquot sum) s(n): 123089158829
• 155812169331 is a deficient number, because the sum of its proper divisors (123089158829) is less than itself. Its deficiency is 32723010502

Bases of 155812169331

• Binary: 10010001000111001000010000011001110011₂
• Hexadecimal: 0x2447210673
• Base-36: 1ZKUJJAR

Squares and roots of 155812169331

• 155812169331 squared (155812169331²) is 24277432111632216987561
• 155812169331 cubed (155812169331³) is 3782719363099495888060789252691691
• The square root of 155812169331 is 394730.5021543179
• The cube root of 155812169331 is 5381.0512050069

Scales and comparisons

• 155,812,169,331 seconds is equal to 4,954 years, 17 weeks, 6 days, 14 hours, 8 minutes, 51 seconds.
• To count from 1 to 155,812,169,331 would take you about nine thousand, nine hundred eight 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 155812169331 cubic inches would be around 448.4 feet tall.

Recreational maths with 155812169331

• 155812169331 backwards is 133961218551
• The number of decimal digits it has is: 12
• The sum of 155812169331's digits is 45
• More coming soon!