138641868288

Names of 138641868288

• Cardinal: 138641868288 can be written as One hundred thirty-eight billion, six hundred forty-one million, eight hundred sixty-eight thousand, two hundred eighty-eight.

Scientific notation

• Scientific notation: 1.38641868288 × 10¹¹

Factors of 138641868288

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 390766

Divisors of 138641868288

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 28 32 33 36 42 44 48 56 63 64 66 72 77 84 88 96 99 112 126 128 132 144 154 168 176 192 198 224 231 252 256 264 288 308 336 352 384 396 448 462 504 512 528 576 616 672 693 704 768 792 896 924 1008 1056 1152 1232 1344 1386 1408 1536 1584 1792 1848 2016 2112 2304 2464 2688 2772 2816 3168 3584 3696 4032 4224 4608 4928 5376 5544 5632 6336 7392 8064 8448 9856 10752 11088 12672 14784 16128 16896 19712 22176 25344 29568 32256 39424 44352 50688 59136 88704 118272 177408 354816 390743 781486 1172229 1562972 2344458 2735201 3125944 3516687 4298173 4688916 5470402 6251888 7033374 8205603 8596346 9377832 10940804 12503776 12894519 14066748 16411206 17192692 18755664 21881608 24616809 25007552 25789038 28133496 30087211 32822412 34385384 37511328 38683557 43763216 49233618 50015104 51578076 56266992 60174422 65644824 68770768 75022656 77367114 87526432 90261633 98467236 100030208 103156152 112533984 120348844 131289648 137541536 150045312 154734228 175052864 180523266 196934472 200060416 206312304 225067968 240697688 262579296 270784899 275083072 300090624 309468456 350105728 361046532 393868944 412624608 450135936 481395376 525158592 541569798 550166144 600181248 618936912 700211456 722093064 787737888 825249216 900271872 962790752 1050317184 1083139596 1100332288 1237873824 1400422912 1444186128 1575475776 1650498432 1800543744 1925581504 2100634368 2166279192 2200664576 2475747648 2888372256 3150951552 3300996864 3851163008 4201268736 4332558384 4951495296 5776744512 6301903104 6601993728 7702326016 8665116768 9902990592 11553489024 12603806208 15404652032 17330233536 19805981184 23106978048 34660467072 46213956096 69320934144 138641868288
• Sum of all divisors σ(n): 498864427776
• Sum of proper divisors (its aliquot sum) s(n): 360222559488
• 138641868288 is an abundant number, because the sum of its proper divisors (360222559488) is greater than itself. Its abundance is 221580691200

Bases of 138641868288

• Binary: 10000001000111101100110000011000000000₂
• Hexadecimal: 0x2047B30600
• Base-36: 1ROVSE80

Squares and roots of 138641868288

• 138641868288 squared (138641868288²) is 19221567642387140050944
• 138641868288 cubed (138641868288³) is 2664914049364720556847987658063872
• The square root of 138641868288 is 372346.4358470483
• The cube root of 138641868288 is 5175.6488195255

Scales and comparisons

• 138,641,868,288 seconds is equal to 4,408 years, 19 weeks, 6 days, 6 hours, 4 minutes, 48 seconds.
• To count from 1 to 138,641,868,288 would take you about eight thousand, eight hundred sixteen 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 138641868288 cubic inches would be around 431.3 feet tall.

Recreational maths with 138641868288

• 138641868288 backwards is 882868146831
• 138641868288 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138641868288's digits is 63
• More coming soon!