138505645656

Names of 138505645656

• Cardinal: 138505645656 can be written as One hundred thirty-eight billion, five hundred five million, six hundred forty-five thousand, six hundred fifty-six.

Scientific notation

• Scientific notation: 1.38505645656 × 10¹¹

Factors of 138505645656

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 4509

Divisors of 138505645656

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 19 21 24 27 28 36 38 42 54 56 57 63 72 76 84 108 114 126 133 152 168 171 189 216 228 252 266 342 378 399 456 504 513 532 684 756 798 1026 1064 1197 1368 1512 1596 1801 2052 2394 2677 3192 3591 3602 4104 4788 5354 5403 7182 7204 8031 9576 10708 10806 12607 14364 14408 16062 16209 18739 21416 21612 24093 25214 28728 32124 32418 34219 37478 37821 43224 48186 48627 50428 50863 56217 64248 64836 68438 72279 74956 75642 96372 97254 100856 101726 102657 112434 113463 129672 136876 144558 149912 151284 152589 168651 192744 194508 203452 205314 224868 226926 239533 273752 289116 302568 305178 307971 337302 340389 356041 389016 406904 410628 449736 453852 457767 479066 505953 578232 610356 615942 674604 680778 712082 718599 821256 907704 915534 923913 958132 1011906 1068123 1220712 1231884 1349208 1361556 1373301 1424164 1437198 1831068 1847826 1916264 2023812 2136246 2155797 2463768 2723112 2746602 2848328 2874396 3204369 3662136 3695652 4047624 4272492 4311594 4821277 5493204 5748792 6408738 6467391 7391304 8544984 8623188 9613107 9642554 10986408 12817476 12934782 14463831 17246376 19226214 19285108 25634952 25869564 28927662 33748939 38452428 38570216 43391493 51739128 57855324 67497878 76904856 86782986 91604263 101246817 115710648 130174479 134995756 173565972 183208526 202493634 260348958 269991512 274812789 303740451 347131944 366417052 404987268 520697916 549625578 607480902 641229841 732834104 809974536 824438367 911221353 1041395832 1099251156 1214961804 1282459682 1648876734 1822442706 1923689523 2198502312 2429923608 2473315101 2564919364 3297753468 3644885412 3847379046 4946630202 5129838728 5771068569 6595506936 7289770824 7694758092 9893260404 11542137138 15389516184 17313205707 19786520808 23084274276 34626411414 46168548552 69252822828 138505645656
• Sum of all divisors σ(n): 463272576000
• Sum of proper divisors (its aliquot sum) s(n): 324766930344
• 138505645656 is an abundant number, because the sum of its proper divisors (324766930344) is greater than itself. Its abundance is 186261284688

Bases of 138505645656

• Binary: 10000000111111100101000110111001011000₂
• Hexadecimal: 0x203F946E58
• Base-36: 1RMMOO60

Squares and roots of 138505645656

• 138505645656 squared (138505645656²) is 19183813878585431670336
• 138505645656 cubed (138505645656³) is 2657066527398008805455358222460416
• The square root of 138505645656 is 372163.4663101687
• The cube root of 138505645656 is 5173.9531519951

Scales and comparisons

• 138,505,645,656 seconds is equal to 4,404 years, 2 weeks, 4 days, 14 hours, 27 minutes, 36 seconds.
• To count from 1 to 138,505,645,656 would take you about eight thousand, eight hundred eight 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 138505645656 cubic inches would be around 431.2 feet tall.

Recreational maths with 138505645656

• 138505645656 backwards is 656546505831
• 138505645656 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138505645656's digits is 54
• More coming soon!