1388438016

Names of 1388438016

• Cardinal: 1388438016 can be written as One billion, three hundred eighty-eight million, four hundred thirty-eight thousand and sixteen.

Scientific notation

• Scientific notation: 1.388438016 × 10⁹

Factors of 1388438016

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 766

Divisors of 1388438016

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 128 168 192 224 256 263 336 384 448 491 512 526 672 768 789 896 982 1052 1344 1473 1536 1578 1792 1841 1964 2104 2688 2946 3156 3437 3584 3682 3928 4208 5376 5523 5892 6312 6874 7364 7856 8416 10311 10752 11046 11784 12624 13748 14728 15712 16832 20622 22092 23568 25248 27496 29456 31424 33664 41244 44184 47136 50496 54992 58912 62848 67328 82488 88368 94272 100992 109984 117824 125696 129133 134656 164976 176736 188544 201984 219968 235648 251392 258266 329952 353472 377088 387399 403968 439936 471296 516532 659904 706944 754176 774798 879872 903931 942592 1033064 1319808 1413888 1549596 1759744 1807862 2066128 2639616 2711793 2827776 3099192 3615724 4132256 5279232 5423586 6198384 7231448 8264512 10847172 12396768 14462896 16529024 21694344 24793536 28925792 33058048 43388688 49587072 57851584 66116096 86777376 99174144 115703168 173554752 198348288 231406336 347109504 462812672 694219008 1388438016
• Sum of all divisors σ(n): 4252013568
• Sum of proper divisors (its aliquot sum) s(n): 2863575552
• 1388438016 is an abundant number, because the sum of its proper divisors (2863575552) is greater than itself. Its abundance is 1475137536

Bases of 1388438016

• Binary: 1010010110000011110001000000000₂
• Hexadecimal: 0x52C1E200
• Base-36: MYN1MO

Squares and roots of 1388438016

• 1388438016 squared (1388438016²) is 1927760124274016256
• 1388438016 cubed (1388438016³) is 2676575442270928570832388096
• The square root of 1388438016 is 37261.7500394171
• The cube root of 1388438016 is 1115.6008387363

Scales and comparisons

• 1,388,438,016 seconds is equal to 44 years, 7 weeks, 4 days, 21 hours, 13 minutes, 36 seconds.
• To count from 1 to 1,388,438,016 would take you about eighty-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 1388438016 cubic inches would be around 93 feet tall.

Recreational maths with 1388438016

• 1388438016 backwards is 6108348831
• 1388438016 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1388438016's digits is 42
• More coming soon!