72105664785486129

Names of 72105664785486129

• Cardinal: 72105664785486129 can be written as Seventy-two quadrillion, one hundred five trillion, six hundred sixty-four billion, seven hundred eighty-five million, four hundred eighty-six thousand, one hundred twenty-nine.

Scientific notation

• Scientific notation: 7.2105664785486129 × 10¹⁶

Factors of 72105664785486129

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 438624

Divisors of 72105664785486129

• Number of divisors d(n): 160
• Complete list of divisors:
  1 3 7 9 21 27 63 81 151 189 191 453 567 573 1057 1337 1359 1719 3171 4011 4077 5157 9513 10303 12033 12231 15471 28539 28841 30909 36099 72121 85617 86523 92727 108297 201887 216363 259569 278181 427969 605661 649089 778707 834543 1283907 1555753 1816983 1947267 1967873 2336121 2995783 3851721 4667259 5450949 5841801 5903619 8987349 10890271 11555163 13775111 14001777 16352847 17710857 26962047 32670813 34665489 41325333 42005331 53132571 64623319 80886141 81742079 98012439 123975999 126015993 159397713 193869957 242658423 245226237 294037317 297148823 371927997 452363233 572194553 581609871 735678711 882111951 891446469 1115783991 1357089699 1716583659 1744829613 2080041761 2207036133 2674339407 4071269097 4409364607 5149750977 5234488839 6240125283 6621108399 8023018221 12213807291 12343053929 13228093821 15449252931 18720375849 24069054663 30865552249 36641421873 37029161787 39684281463 46347758793 56161127547 86401377503 92596656747 111087485361 119052844389 168483382641 259204132509 277789970241 333262456083 357158533167 665814055657 777612397527 833369910723 842188639937 999787368249 1997442166971 2332837192581 2500109732169 2526565919811 4660698389599 5895320479559 5992326500913 6998511577743 7579697759433 13982095168797 17685961438677 17976979502739 22739093278299 41946285506391 53057884316031 53930938508217 68217279834897 125838856519173 127170484630487 159173652948093 377516569557519 381511453891461 477520958844279 890193392413409 1144534361674383 2670580177240227 3433603085023149 8011740531720681 10300809255069447 24035221595162043 72105664785486129
• Sum of all divisors σ(n): 124577425257922560
• Sum of proper divisors (its aliquot sum) s(n): 52471760472436431
• 72105664785486129 is a deficient number, because the sum of its proper divisors (52471760472436431) is less than itself. Its deficiency is 19633904313049698

Bases of 72105664785486129

• Binary: 100000000001010111011100001010111110101010001000100110001₂
• Hexadecimal: 0x1002BB857D51131
• Base-36: JPZBP3W6M29

Squares and roots of 72105664785486129

• 72105664785486129 squared (72105664785486129²) is 5199226894156894405657770851404641
• 72105664785486129 cubed (72105664785486129³) is 374893711573761198181830629362255096825489671724689
• The square root of 72105664785486129 is 268524979.8165640473
• The cube root of 72105664785486129 is 416220.1758871709

Scales and comparisons

• 72,105,664,785,486,129 seconds is equal to 2,292,737,102 years, 37 weeks, 13 hours, 42 minutes, 9 seconds.
• To count from 1 to 72,105,664,785,486,129 would take you about six billion, eight hundred seventy-eight million, two hundred eleven thousand, three 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 72105664785486129 cubic inches would be around 34685 feet tall.

Recreational maths with 72105664785486129

• 72105664785486129 backwards is 92168458746650127
• 72105664785486129 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 72105664785486129's digits is 81
• More coming soon!