138671873280

Names of 138671873280

• Cardinal: 138671873280 can be written as One hundred thirty-eight billion, six hundred seventy-one million, eight hundred seventy-three thousand, two hundred eighty.

Scientific notation

• Scientific notation: 1.3867187328 × 10¹¹

Factors of 138671873280

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 12037499

Divisors of 138671873280

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 160 180 192 240 256 288 320 360 384 480 576 640 720 768 960 1152 1280 1440 1920 2304 2880 3840 5760 11520 12037489 24074978 36112467 48149956 60187445 72224934 96299912 108337401 120374890 144449868 180562335 192599824 216674802 240749780 288899736 361124670 385199648 433349604 481499560 541687005 577799472 722249340 770399296 866699208 962999120 1083374010 1155598944 1444498680 1540798592 1733398416 1925998240 2166748020 2311197888 2888997360 3081597184 3466796832 3851996480 4333496040 4622395776 5777994720 6933593664 7703992960 8666992080 9244791552 11555989440 13867187328 15407985920 17333984160 23111978880 27734374656 34667968320 46223957760 69335936640 138671873280
• Sum of all divisors σ(n): 479790276420
• Sum of proper divisors (its aliquot sum) s(n): 341118403140
• 138671873280 is an abundant number, because the sum of its proper divisors (341118403140) is greater than itself. Its abundance is 202446529860

Bases of 138671873280

• Binary: 10000001001001011111001101110100000000₂
• Hexadecimal: 0x20497CDD00
• Base-36: 1RPDNI80

Squares and roots of 138671873280

• 138671873280 squared (138671873280²) is 19229888438984377958400
• 138671873280 cubed (138671873280³) is 2666644652799378672146869911552000
• The square root of 138671873280 is 372386.7254347287
• The cube root of 138671873280 is 5176.0221653787

Scales and comparisons

• 138,671,873,280 seconds is equal to 4,409 years, 17 weeks, 3 days, 12 hours, 48 minutes.
• To count from 1 to 138,671,873,280 would take you about eight thousand, eight hundred eighteen 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 138671873280 cubic inches would be around 431.3 feet tall.

Recreational maths with 138671873280

• 138671873280 backwards is 082378176831
• The number of decimal digits it has is: 12
• The sum of 138671873280's digits is 54
• More coming soon!