1388685612808

Names of 1388685612808

• Cardinal: 1388685612808 can be written as One trillion, three hundred eighty-eight billion, six hundred eighty-five million, six hundred twelve thousand, eight hundred eight.

Scientific notation

• Scientific notation: 1.388685612808 × 10¹²

Factors of 1388685612808

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 4030

Divisors of 1388685612808

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 8 13 26 52 53 104 106 169 212 338 421 424 676 689 842 1352 1378 1684 2197 2756 3368 3541 4394 5473 5512 7082 8788 8957 10946 14164 17576 17914 21892 22313 28328 35828 43784 44626 46033 71149 71656 89252 92066 116441 142298 178504 184132 187673 232882 284596 290069 368264 375346 465764 569192 580138 598429 750692 924937 931528 1160276 1196858 1490761 1501384 1849874 2320552 2393716 2439749 2981522 3699748 3770897 4787432 4879498 5963044 7399496 7541794 7779577 9758996 11926088 15083588 15559154 19379893 19517992 30167176 31118308 31716737 38759786 49021661 62236616 63433474 77519572 79010333 98043322 126866948 155039144 158020666 196086644 251938609 253733896 316041332 392173288 412317581 503877218 632082664 824635162 1007754436 1027134329 1649270324 2015508872 2054268658 3275201917 3298540648 4108537316 6550403834 8217074632 13100807668 13352746277 26201615336 26705492554 53410985108 106821970216 173585701601 347171403202 694342806404 1388685612808
• Sum of all divisors σ(n): 2881528927200
• Sum of proper divisors (its aliquot sum) s(n): 1492843314392
• 1388685612808 is an abundant number, because the sum of its proper divisors (1492843314392) is greater than itself. Its abundance is 104157701584

Bases of 1388685612808

• Binary: 10100001101010100000111001101011100001000₂
• Hexadecimal: 0x143541CD708
• Base-36: HPYBK4JS

Squares and roots of 1388685612808

• 1388685612808 squared (1388685612808²) is 1928447731219930493644864
• 1388685612808 cubed (1388685612808³) is 2678007619397346450990383913361818112
• The square root of 1388685612808 is 1178425.0560846033
• The cube root of 1388685612808 is 11156.6714893193

Scales and comparisons

• 1,388,685,612,808 seconds is equal to 44,155 years, 47 weeks, 1 day, 3 hours, 33 minutes, 28 seconds.
• To count from 1 to 1,388,685,612,808 would take you about one hundred ten thousand, three hundred eighty-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 1388685612808 cubic inches would be around 929.7 feet tall.

Recreational maths with 1388685612808

• 1388685612808 backwards is 8082165868831
• The number of decimal digits it has is: 13
• The sum of 1388685612808's digits is 64
• More coming soon!