138891804672

Names of 138891804672

• Cardinal: 138891804672 can be written as One hundred thirty-eight billion, eight hundred ninety-one million, eight hundred four thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 1.38891804672 × 10¹¹

Factors of 138891804672

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 46

Divisors of 138891804672

• Number of divisors d(n): 150
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 41 48 64 82 96 123 128 164 192 246 256 328 384 492 512 656 768 984 1024 1312 1536 1681 1968 2048 2624 3072 3362 3936 4096 5043 5248 6144 6724 7872 8192 10086 10496 12288 13448 15744 16384 20172 20992 24576 26896 31488 40344 41984 49152 53792 62976 68921 80688 83968 107584 125952 137842 161376 167936 206763 215168 251904 275684 322752 335872 413526 430336 503808 551368 645504 671744 827052 860672 1007616 1102736 1291008 1654104 1721344 2015232 2205472 2582016 2825761 3308208 3442688 4410944 5164032 5651522 6616416 6885376 8477283 8821888 10328064 11303044 13232832 13770752 16954566 17643776 20656128 22606088 26465664 27541504 33909132 35287552 41312256 45212176 52931328 67818264 70575104 82624512 90424352 105862656 135636528 141150208 180848704 211725312 271273056 282300416 361697408 423450624 542546112 564600832 723394816 846901248 1085092224 1129201664 1446789632 1693802496 2170184448 2893579264 3387604992 4340368896 5787158528 8680737792 11574317056 17361475584 23148634112 34722951168 46297268224 69445902336 138891804672
• Sum of all divisors σ(n): 379626010540
• Sum of proper divisors (its aliquot sum) s(n): 240734205868
• 138891804672 is an abundant number, because the sum of its proper divisors (240734205868) is greater than itself. Its abundance is 101842401196

Bases of 138891804672

• Binary: 10000001010110100110001100000000000000₂
• Hexadecimal: 0x205698C000
• Base-36: 1RT0LEDC

Squares and roots of 138891804672

• 138891804672 squared (138891804672²) is 19290933405045001027584
• 138891804672 cubed (138891804672³) is 2679352554434070142093236212072448
• The square root of 138891804672 is 372681.9081629801
• The cube root of 138891804672 is 5178.7570830671

Scales and comparisons

• 138,891,804,672 seconds is equal to 4,416 years, 17 weeks, 1 day, 51 minutes, 12 seconds.
• To count from 1 to 138,891,804,672 would take you about eight thousand, eight hundred thirty-two 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 138891804672 cubic inches would be around 431.6 feet tall.

Recreational maths with 138891804672

• 138891804672 backwards is 276408198831
• The number of decimal digits it has is: 12
• The sum of 138891804672's digits is 57
• More coming soon!