1938131442

Names of 1938131442

• Cardinal: 1938131442 can be written as One billion, nine hundred thirty-eight million, one hundred thirty-one thousand, four hundred forty-two.

Scientific notation

• Scientific notation: 1.938131442 × 10⁹

Factors of 1938131442

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 807

Divisors of 1938131442

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 9 13 18 19 26 27 38 39 54 57 78 114 117 171 234 247 331 342 351 439 494 513 662 702 741 878 993 1026 1317 1482 1986 2223 2634 2979 3951 4303 4446 5707 5958 6289 6669 7902 8341 8606 8937 11414 11853 12578 12909 13338 16682 17121 17874 18867 23706 25023 25818 34242 37734 38727 50046 51363 56601 75069 77454 81757 102726 108433 113202 116181 145309 150138 154089 163514 169803 216866 225207 232362 245271 290618 308178 325299 339606 435927 450414 490542 650598 735813 871854 975897 1307781 1471626 1889017 1951794 2207439 2615562 2760871 2927691 3778034 3923343 4414878 5521742 5667051 5855382 7846686 8282613 11334102 16565226 17001153 24847839 34002306 35891323 49695678 51003459 71782646 74543517 102006918 107673969 149087034 215347938 323021907 646043814 969065721 1938131442
• Sum of all divisors σ(n): 4908288000
• Sum of proper divisors (its aliquot sum) s(n): 2970156558
• 1938131442 is an abundant number, because the sum of its proper divisors (2970156558) is greater than itself. Its abundance is 1032025116

Bases of 1938131442

• Binary: 1110011100001011000100111110010₂
• Hexadecimal: 0x738589F2
• Base-36: W1WVSI

Squares and roots of 1938131442

• 1938131442 squared (1938131442²) is 3756353486468999364
• 1938131442 cubed (1938131442³) is 7280306799391889225646402888
• The square root of 1938131442 is 44024.2142689679
• The cube root of 1938131442 is 1246.7931542411

Scales and comparisons

• 1,938,131,442 seconds is equal to 61 years, 32 weeks, 4 days, 1 hour, 50 minutes, 42 seconds.
• To count from 1 to 1,938,131,442 would take you about one hundred twenty-three 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 1938131442 cubic inches would be around 103.9 feet tall.

Recreational maths with 1938131442

• 1938131442 backwards is 2441318391
• The number of decimal digits it has is: 10
• The sum of 1938131442's digits is 36
• More coming soon!