138648446326453278780

Names of 138648446326453278780

• Cardinal: 138648446326453278780 can be written as One hundred thirty-eight quintillion, six hundred forty-eight quadrillion, four hundred forty-six trillion, three hundred twenty-six billion, four hundred fifty-three million, two hundred seventy-eight thousand, seven hundred eighty.

Scientific notation

• Scientific notation: 1.3864844632645327878 × 10²⁰

Factors of 138648446326453278780

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 28029152760582

Divisors of 138648446326453278780

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 27481 54962 82443 109924 137405 164886 247329 274810 329772 412215 494658 549620 824430 989316 1236645 1648860 2473290 4946580 28029152733091 56058305466182 84087458199273 112116610932364 140145763665455 168174916398546 252262374597819 280291527330910 336349832797092 420437290996365 504524749195638 560583054661820 840874581992730 1009049498391276 1261311872989095 1681749163985460 2522623745978190 5045247491956380 770269146258073771 1540538292516147542 2310807438774221313 3081076585032295084 3851345731290368855 4621614877548442626 6932422316322663939 7702691462580737710 9243229755096885252 11554037193871106565 13864844632645327878 15405382925161475420 23108074387742213130 27729689265290655756 34662111581613319695 46216148775484426260 69324223163226639390 138648446326453278780
• Sum of all divisors σ(n): 420582257774315551824
• Sum of proper divisors (its aliquot sum) s(n): 281933811447862273044
• 138648446326453278780 is an abundant number, because the sum of its proper divisors (281933811447862273044) is greater than itself. Its abundance is 143285365121408994264

Bases of 138648446326453278780

• Binary: 1111000010000100010001110110101011111001100000011111001100000111100₂
• Hexadecimal: 0x784223B57CC0F983C
• Base-36: T9DW4BPM9U8N0

Squares and roots of 138648446326453278780

• 138648446326453278780 squared (138648446326453278780²) is 19223391668739395695475294986212398288400
• 138648446326453278780 cubed (138648446326453278780³) is 2665293387995603231688850235373668907356452141135440040152000
• The square root of 138648446326453278780 is 11774907486.9594316817
• The cube root of 138648446326453278780 is 5175730.6732948715

Scales and comparisons

• 138,648,446,326,453,278,780 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 138,648,446,326,453,278,780 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and 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 138648446326453278780 cubic inches would be around 431310.9 feet tall.

Recreational maths with 138648446326453278780

• 138648446326453278780 backwards is 087872354623644846831
• The number of decimal digits it has is: 21
• The sum of 138648446326453278780's digits is 99
• More coming soon!