138885219387680

Names of 138885219387680

• Cardinal: 138885219387680 can be written as One hundred thirty-eight trillion, eight hundred eighty-five billion, two hundred nineteen million, three hundred eighty-seven thousand, six hundred eighty.

Scientific notation

• Scientific notation: 1.3888521938768 × 10¹⁴

Factors of 138885219387680

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 8948790013

Divisors of 138885219387680

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 80 97 160 194 388 485 776 970 1552 1940 3104 3880 7760 15520 8948789909 17897579818 35795159636 44743949545 71590319272 89487899090 143180638544 178975798180 286361277088 357951596360 715903192720 868032621173 1431806385440 1736065242346 3472130484692 4340163105865 6944260969384 8680326211730 13888521938768 17360652423460 27777043877536 34721304846920 69442609693840 138885219387680
• Sum of all divisors σ(n): 331498973426040
• Sum of proper divisors (its aliquot sum) s(n): 192613754038360
• 138885219387680 is an abundant number, because the sum of its proper divisors (192613754038360) is greater than itself. Its abundance is 53728534650680

Bases of 138885219387680

• Binary: 11111100101000010111100001010101000100100100000₂
• Hexadecimal: 0x7E50BC2A8920
• Base-36: 1D8AZLPOGW

Squares and roots of 138885219387680

• 138885219387680 squared (138885219387680²) is 19289104164364004554135782400
• 138885219387680 cubed (138885219387680³) is 2678971463659506670658782779907705720832000
• The square root of 138885219387680 is 11784957.3349961687
• The cube root of 138885219387680 is 51786.7523488099

Scales and comparisons

• 138,885,219,387,680 seconds is equal to 4,416,120 years, 19 weeks, 3 days, 23 hours, 41 minutes, 20 seconds.
• To count from 1 to 138,885,219,387,680 would take you about eleven million, forty thousand, three hundred 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 138885219387680 cubic inches would be around 4315.6 feet tall.

Recreational maths with 138885219387680

• 138885219387680 backwards is 086783912588831
• The number of decimal digits it has is: 15
• The sum of 138885219387680's digits is 77
• More coming soon!