138820236840

Names of 138820236840

• Cardinal: 138820236840 can be written as One hundred thirty-eight billion, eight hundred twenty million, two hundred thirty-six thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.3882023684 × 10¹¹

Factors of 138820236840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 352

Divisors of 138820236840

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 73 90 120 146 180 219 269 292 360 365 438 538 584 657 730 807 876 1076 1095 1314 1345 1460 1614 1752 2152 2190 2421 2628 2690 2920 3228 3285 4035 4380 4842 5256 5329 5380 6456 6570 8070 8760 9684 10658 10760 12105 13140 15987 16140 19368 19637 21316 24210 26280 26645 31974 32280 39274 42632 47961 48420 53290 58911 63948 72361 78548 79935 95922 96840 98185 106580 117822 127896 144722 157096 159870 176733 191844 196370 213160 217083 235644 239805 289444 294555 319740 353466 361805 383688 392740 434166 471288 479610 578888 589110 639480 651249 706932 723610 785480 868332 883665 959220 1085415 1178220 1302498 1413864 1433501 1447220 1736664 1767330 1918440 2170830 2356440 2604996 2867002 2894440 3256245 3534660 4300503 4341660 5209992 5282353 5734004 6512490 7069320 7167505 8601006 8683320 10564706 11468008 12901509 13024980 14335010 15847059 17202012 21129412 21502515 25803018 26049960 26411765 28670020 31694118 34404024 42258824 43005030 47541177 51606036 52823530 57340040 63388236 64507545 79235295 86010060 95082354 103212072 105647060 126776472 129015090 158470590 172020120 190164708 211294120 237705885 258030180 316941180 380329416 385611769 475411770 516060360 633882360 771223538 950823540 1156835307 1542447076 1901647080 1928058845 2313670614 3084894152 3470505921 3856117690 4627341228 5784176535 6941011842 7712235380 9254682456 11568353070 13882023684 15424470760 17352529605 23136706140 27764047368 34705059210 46273412280 69410118420 138820236840
• Sum of all divisors σ(n): 459137592810
• Sum of proper divisors (its aliquot sum) s(n): 320317355970
• 138820236840 is an abundant number, because the sum of its proper divisors (320317355970) is greater than itself. Its abundance is 181497119130

Bases of 138820236840

• Binary: 10000001010010010101001011011000101000₂
• Hexadecimal: 0x205254B628
• Base-36: 1RRTZGA0

Squares and roots of 138820236840

• 138820236840 squared (138820236840²) is 19271058156313693185600
• 138820236840 cubed (138820236840³) is 2675212857416880629360086077504000
• The square root of 138820236840 is 372585.8784763585
• The cube root of 138820236840 is 5177.8674311169

Scales and comparisons

• 138,820,236,840 seconds is equal to 4,414 years, 2 weeks, 5 days, 16 hours, 54 minutes.
• To count from 1 to 138,820,236,840 would take you about eight thousand, eight hundred twenty-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 138820236840 cubic inches would be around 431.5 feet tall.

Recreational maths with 138820236840

• 138820236840 backwards is 048632028831
• 138820236840 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138820236840's digits is 45
• More coming soon!