138921743520

Names of 138921743520

• Cardinal: 138921743520 can be written as One hundred thirty-eight billion, nine hundred twenty-one million, seven hundred forty-three thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.3892174352 × 10¹¹

Factors of 138921743520

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 4593990

Divisors of 138921743520

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 32 35 36 40 42 45 48 54 56 60 63 70 72 80 84 90 96 105 108 112 120 126 135 140 144 160 168 180 189 210 216 224 240 252 270 280 288 315 336 360 378 420 432 480 504 540 560 630 672 720 756 840 864 945 1008 1080 1120 1260 1440 1512 1680 1890 2016 2160 2520 3024 3360 3780 4320 5040 6048 7560 10080 15120 30240 4593973 9187946 13781919 18375892 22969865 27563838 32157811 36751784 41345757 45939730 55127676 64315622 68909595 73503568 82691514 91879460 96473433 110255352 124037271 128631244 137819190 147007136 160789055 165383028 183758920 192946866 206728785 220510704 248074542 257262488 275638380 289420299 321578110 330766056 367517840 385893732 413457570 441021408 482367165 496149084 514524976 551276760 578840598 620186355 643156220 661532112 735035680 771787464 826915140 868260897 964734330 992298168 1029049952 1102553520 1157681196 1240372710 1286312440 1323064224 1447101495 1543574928 1653830280 1736521794 1929468660 1984596336 2205107040 2315362392 2480745420 2572624880 2894202990 3087149856 3307660560 3473043588 3858937320 3969192672 4341304485 4630724784 4961490840 5145249760 5788405980 6615321120 6946087176 7717874640 8682608970 9261449568 9922981680 11576811960 13892174352 15435749280 17365217940 19845963360 23153623920 27784348704 34730435880 46307247840 69460871760 138921743520
• Sum of all divisors σ(n): 555687095040
• Sum of proper divisors (its aliquot sum) s(n): 416765351520
• 138921743520 is an abundant number, because the sum of its proper divisors (416765351520) is greater than itself. Its abundance is 277843608000

Bases of 138921743520

• Binary: 10000001011000011000011001010010100000₂
• Hexadecimal: 0x20586194A0
• Base-36: 1RTIF3C0

Squares and roots of 138921743520

• 138921743520 squared (138921743520²) is 19299250822636661990400
• 138921743520 cubed (138921743520³) is 2681085572910479367179281502208000
• The square root of 138921743520 is 372722.0727566319
• The cube root of 138921743520 is 5179.1291589731

Scales and comparisons

• 138,921,743,520 seconds is equal to 4,417 years, 14 weeks, 4 days, 13 hours, 12 minutes.
• To count from 1 to 138,921,743,520 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 138921743520 cubic inches would be around 431.6 feet tall.

Recreational maths with 138921743520

• 138921743520 backwards is 025347129831
• 138921743520 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138921743520's digits is 45
• More coming soon!