138885120

Names of 138885120

• Cardinal: 138885120 can be written as One hundred thirty-eight million, eight hundred eighty-five thousand, one hundred twenty.

Scientific notation

• Scientific notation: 1.3888512 × 10⁸

Factors of 138885120

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 158

Divisors of 138885120

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 30 32 33 36 40 44 45 48 55 60 64 66 72 80 88 90 96 99 110 120 128 132 137 144 160 165 176 180 192 198 220 240 256 264 274 288 320 330 352 360 384 396 411 440 480 495 512 528 548 576 640 660 685 704 720 768 792 822 880 960 990 1024 1056 1096 1152 1233 1280 1320 1370 1408 1440 1507 1536 1584 1644 1760 1920 1980 2048 2055 2112 2192 2304 2466 2560 2640 2740 2816 2880 3014 3072 3168 3288 3520 3840 3960 4110 4224 4384 4521 4608 4932 5120 5280 5480 5632 5760 6028 6144 6165 6336 6576 7040 7535 7680 7920 8220 8448 8768 9042 9216 9864 10240 10560 10960 11264 11520 12056 12330 12672 13152 13563 14080 15070 15360 15840 16440 16896 17536 18084 18432 19728 21120 21920 22528 22605 23040 24112 24660 25344 26304 27126 28160 30140 30720 31680 32880 33792 35072 36168 39456 42240 43840 45210 46080 48224 49320 50688 52608 54252 56320 60280 63360 65760 67584 67815 70144 72336 78912 84480 87680 90420 92160 96448 98640 101376 105216 108504 112640 120560 126720 131520 135630 140288 144672 157824 168960 175360 180840 192896 197280 202752 210432 217008 241120 253440 263040 271260 280576 289344 315648 337920 350720 361680 385792 394560 420864 434016 482240 506880 526080 542520 578688 631296 701440 723360 771584 789120 841728 868032 964480 1013760 1052160 1085040 1157376 1262592 1402880 1446720 1543168 1578240 1736064 1928960 2104320 2170080 2314752 2525184 2893440 3086336 3156480 3472128 3857920 4208640 4340160 4629504 5786880 6312960 6944256 7715840 8680320 9259008 11573760 12625920 13888512 15431680 17360640 23147520 27777024 34721280 46295040 69442560 138885120
• Sum of all divisors σ(n): 528942960
• Sum of proper divisors (its aliquot sum) s(n): 390057840
• 138885120 is an abundant number, because the sum of its proper divisors (390057840) is greater than itself. Its abundance is 251172720

Bases of 138885120

• Binary: 1000010001110011100000000000₂
• Hexadecimal: 0x8473800
• Base-36: 2AOSG0

Squares and roots of 138885120

• 138885120 squared (138885120²) is 19289076557414400
• 138885120 cubed (138885120³) is 2678965712365685833728000
• The square root of 138885120 is 11784.9531182775
• The cube root of 138885120 is 517.8673999577

Scales and comparisons

• 138,885,120 seconds is equal to 4 years, 21 weeks, 4 days, 11 hours, 12 minutes.
• To count from 1 to 138,885,120 would take you about six 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 138885120 cubic inches would be around 43.2 feet tall.

Recreational maths with 138885120

• 138885120 backwards is 021588831
• 138885120 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 138885120's digits is 36
• More coming soon!