1388418594221

Names of 1388418594221

• Cardinal: 1388418594221 can be written as One trillion, three hundred eighty-eight billion, four hundred eighteen million, five hundred ninety-four thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 1.388418594221 × 10¹²

Factors of 1388418594221

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 318

Divisors of 1388418594221

• Number of divisors d(n): 54
• Complete list of divisors:
  1 17 29 61 211 289 493 1037 1769 3587 3721 6119 8381 12871 17629 30073 44521 60979 63257 104023 107909 218807 373259 511241 756857 785131 1075369 1291109 1768391 1834453 2715781 3719719 6345403 12866569 13347227 21948853 22768799 31185701 46168277 78757649 107871851 165662641 226902859 373130501 387069583 784860709 1338880033 2816264897 4804216589 6580182911 22760960561 47876503249 81671682013 1388418594221
• Sum of all divisors σ(n): 1558561688190
• Sum of proper divisors (its aliquot sum) s(n): 170143093969
• 1388418594221 is a deficient number, because the sum of its proper divisors (170143093969) is less than itself. Its deficiency is 1218275500252

Bases of 1388418594221

• Binary: 10100001101000100001100100111010110101101₂
• Hexadecimal: 0x143443275AD
• Base-36: HPTWKZOT

Squares and roots of 1388418594221

• 1388418594221 squared (1388418594221²) is 1927706192778617854596841
• 1388418594221 cubed (1388418594221³) is 2676463122248804623546716963927455861
• The square root of 1388418594221 is 1178311.7559546795
• The cube root of 1388418594221 is 11155.9563695477

Scales and comparisons

• 1,388,418,594,221 seconds is equal to 44,147 years, 21 weeks, 4 days, 15 hours, 43 minutes, 41 seconds.
• To count from 1 to 1,388,418,594,221 would take you about one hundred ten thousand, three hundred sixty-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 1388418594221 cubic inches would be around 929.7 feet tall.

Recreational maths with 1388418594221

• 1388418594221 backwards is 1224958148831
• The number of decimal digits it has is: 13
• The sum of 1388418594221's digits is 56
• More coming soon!