138918643200

Names of 138918643200

• Cardinal: 138918643200 can be written as One hundred thirty-eight billion, nine hundred eighteen million, six hundred forty-three thousand, two hundred.

Scientific notation

• Scientific notation: 1.389186432 × 10¹¹

Factors of 138918643200

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 1205901

Divisors of 138918643200

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 32 36 40 45 48 50 60 64 72 75 80 90 96 100 120 128 144 150 160 180 192 200 225 240 256 288 300 320 360 384 400 450 480 512 576 600 640 720 768 800 900 960 1152 1200 1280 1440 1536 1600 1800 1920 2304 2400 2560 2880 3200 3600 3840 4608 4800 5760 6400 7200 7680 9600 11520 12800 14400 19200 23040 28800 38400 57600 115200 1205891 2411782 3617673 4823564 6029455 7235346 9647128 10853019 12058910 14470692 18088365 19294256 21706038 24117820 28941384 30147275 36176730 38588512 43412076 48235640 54265095 57882768 60294550 72353460 77177024 86824152 90441825 96471280 108530190 115765536 120589100 144706920 154354048 173648304 180883650 192942560 217060380 231531072 241178200 271325475 289413840 308708096 347296608 361767300 385885120 434120760 463062144 482356400 542650950 578827680 617416192 694593216 723534600 771770240 868241520 926124288 964712800 1085301900 1157655360 1389186432 1447069200 1543540480 1736483040 1852248576 1929425600 2170603800 2315310720 2778372864 2894138400 3087080960 3472966080 3858851200 4341207600 4630621440 5556745728 5788276800 6945932160 7717702400 8682415200 9261242880 11576553600 13891864320 15435404800 17364830400 23153107200 27783728640 34729660800 46306214400 69459321600 138918643200
• Sum of all divisors σ(n): 497151888948
• Sum of proper divisors (its aliquot sum) s(n): 358233245748
• 138918643200 is an abundant number, because the sum of its proper divisors (358233245748) is greater than itself. Its abundance is 219314602548

Bases of 138918643200

• Binary: 10000001011000001100100100011000000000₂
• Hexadecimal: 0x2058324600
• Base-36: 1RTGKN40

Squares and roots of 138918643200

• 138918643200 squared (138918643200²) is 19298389428528906240000
• 138918643200 cubed (138918643200³) is 2680906075356459026840813568000000
• The square root of 138918643200 is 372717.9137095505
• The cube root of 138918643200 is 5179.0906311017

Scales and comparisons

• 138,918,643,200 seconds is equal to 4,417 years, 9 weeks, 3 days, 16 hours.
• To count from 1 to 138,918,643,200 would take you about eight thousand, eight hundred thirty-four 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 138918643200 cubic inches would be around 431.6 feet tall.

Recreational maths with 138918643200

• 138918643200 backwards is 002346819831
• 138918643200 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138918643200's digits is 45
• More coming soon!