138694766728440

Names of 138694766728440

• Cardinal: 138694766728440 can be written as One hundred thirty-eight trillion, six hundred ninety-four billion, seven hundred sixty-six million, seven hundred twenty-eight thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.3869476672844 × 10¹⁴

Factors of 138694766728440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 27537133

Divisors of 138694766728440

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 78 104 120 130 156 195 260 312 390 520 780 1560 3229 6458 9687 12916 16145 19374 25832 32290 38748 41977 48435 64580 77496 83954 96870 125931 129160 167908 193740 209885 251862 335816 387480 419770 503724 629655 839540 1007448 1259310 1679080 2518620 5037240 27533881 55067762 82601643 110135524 137669405 165203286 220271048 275338810 330406572 357940453 413008215 550677620 660813144 715880906 826016430 1073821359 1101355240 1431761812 1652032860 1789702265 2147642718 2863523624 3304065720 3579404530 4295285436 5369106795 7158809060 8590570872 10738213590 14317618120 21476427180 42952854360 88906901749 177813803498 266720705247 355627606996 444534508745 533441410494 711255213992 889069017490 1066882820988 1155789722737 1333603526235 1778138034980 2133765641976 2311579445474 2667207052470 3467369168211 3556276069960 4623158890948 5334414104940 5778948613685 6934738336422 9246317781896 10668828209880 11557897227370 13869476672844 17336845841055 23115794454740 27738953345688 34673691682110 46231588909480 69347383364220 138694766728440
• Sum of all divisors σ(n): 448229571854400
• Sum of proper divisors (its aliquot sum) s(n): 309534805125960
• 138694766728440 is an abundant number, because the sum of its proper divisors (309534805125960) is greater than itself. Its abundance is 170840038397520

Bases of 138694766728440

• Binary: 11111100010010001100100010011011001010011111000₂
• Hexadecimal: 0x7E24644D94F8
• Base-36: 1D5VHV483C

Squares and roots of 138694766728440

• 138694766728440 squared (138694766728440²) is 19236238317856387220704833600
• 138694766728440 cubed (138694766728440³) is 2667965586227770687440353958271166587584000
• The square root of 138694766728440 is 11776874.2342117249
• The cube root of 138694766728440 is 51763.0698755969

Scales and comparisons

• 138,694,766,728,440 seconds is equal to 4,410,064 years, 29 weeks, 4 days, 19 hours, 14 minutes.
• To count from 1 to 138,694,766,728,440 would take you about eleven million, twenty-five thousand, one hundred sixty-one 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 138694766728440 cubic inches would be around 4313.6 feet tall.

Recreational maths with 138694766728440

• 138694766728440 backwards is 044827667496831
• The number of decimal digits it has is: 15
• The sum of 138694766728440's digits is 75
• More coming soon!