138400339031928

Names of 138400339031928

• Cardinal: 138400339031928 can be written as One hundred thirty-eight trillion, four hundred billion, three hundred thirty-nine million, thirty-one thousand, nine hundred twenty-eight.

Scientific notation

• Scientific notation: 1.38400339031928 × 10¹⁴

Factors of 138400339031928

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2636799636

Divisors of 138400339031928

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 243 324 486 648 729 972 1458 1944 2187 2916 4374 5832 6561 8748 13122 17496 26244 52488 2636799631 5273599262 7910398893 10547198524 15820797786 21094397048 23731196679 31641595572 47462393358 63283191144 71193590037 94924786716 142387180074 189849573432 213580770111 284774360148 427161540222 569548720296 640742310333 854323080444 1281484620666 1708646160888 1922226930999 2562969241332 3844453861998 5125938482664 5766680792997 7688907723996 11533361585994 15377815447992 17300042378991 23066723171988 34600084757982 46133446343976 69200169515964 138400339031928
• Sum of all divisors σ(n): 389231177677680
• Sum of proper divisors (its aliquot sum) s(n): 250830838645752
• 138400339031928 is an abundant number, because the sum of its proper divisors (250830838645752) is greater than itself. Its abundance is 112430499613824

Bases of 138400339031928

• Binary: 11111011101111111010111000010110111011101111000₂
• Hexadecimal: 0x7DDFD70B7778
• Base-36: 1D248KGVI0

Squares and roots of 138400339031928

• 138400339031928 squared (138400339031928²) is 19154653844152613048203397184
• 138400339031928 cubed (138400339031928³) is 2651010586069944601543278140620283441290752
• The square root of 138400339031928 is 11764367.3451625949
• The cube root of 138400339031928 is 51726.4155760749

Scales and comparisons

• 138,400,339,031,928 seconds is equal to 4,400,702 years, 35 weeks, 2 days, 19 hours, 58 minutes, 48 seconds.
• To count from 1 to 138,400,339,031,928 would take you about eleven million, one thousand, seven hundred fifty-six 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 138400339031928 cubic inches would be around 4310.5 feet tall.

Recreational maths with 138400339031928

• 138400339031928 backwards is 829130933004831
• 138400339031928 is a Harshad number.
• The number of decimal digits it has is: 15
• The sum of 138400339031928's digits is 54
• More coming soon!