138992860305

Names of 138992860305

• Cardinal: 138992860305 can be written as One hundred thirty-eight billion, nine hundred ninety-two million, eight hundred sixty thousand, three hundred five.

Scientific notation

• Scientific notation: 1.38992860305 × 10¹¹

Factors of 138992860305

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 647

Divisors of 138992860305

• Number of divisors d(n): 256
• Complete list of divisors:
  1 3 5 9 13 15 27 31 39 45 65 73 79 93 117 135 155 195 219 237 279 351 365 395 403 443 465 585 657 711 837 949 1027 1095 1185 1209 1329 1395 1755 1971 2015 2133 2215 2263 2449 2847 3081 3285 3555 3627 3987 4185 4745 5135 5759 5767 6045 6645 6789 7347 8541 9243 9855 10665 10881 11315 11961 12245 13733 14235 15405 17277 17301 18135 19935 20367 22041 25623 27729 28795 28835 29419 31837 32339 33945 34997 36735 41199 42705 46215 51831 51903 54405 59805 61101 66123 68665 74971 86385 86505 88257 95511 97017 101835 104991 110205 123597 128115 138645 147095 155493 155709 159185 161695 174985 178529 178777 205995 224913 259155 259515 264771 286533 291051 305505 314973 330615 370791 374855 420407 441285 454961 477555 485085 524955 535587 536331 617985 674739 777465 778545 794313 859599 873153 892645 893885 944919 1002509 1084907 1124565 1261221 1323855 1364883 1432665 1455255 1574865 1606761 1608993 1853955 2024217 2102035 2274805 2324101 2554781 2677935 2681655 3007527 3254721 3373695 3783663 3971565 4094649 4297995 4365765 4724595 4820283 4826979 5012545 5424535 6306105 6824415 6972303 7664343 8033805 8044965 9022581 9764163 10121085 11350989 11620505 12283947 12773905 13032617 14103791 15037635 16273605 18918315 20473245 20916909 22993029 24101415 24134895 27067743 29292489 33212153 34861515 38321715 39097851 42311373 45112905 48820815 56754945 61419735 62750727 65163085 68979087 70518955 79198211 99636459 104584545 114965145 117293553 126934119 135338715 146462445 166060765 195489255 211556865 237594633 298909377 313753635 344895435 351880659 380802357 395991055 498182295 586467765 634670595 712783899 896728131 1029576743 1187973165 1494546885 1759403295 1904011785 2138351697 3088730229 3563919495 4483640655 5147883715 9266190687 10691758485 15443651145 27798572061 46330953435 138992860305
• Sum of all divisors σ(n): 282614169600
• Sum of proper divisors (its aliquot sum) s(n): 143621309295
• 138992860305 is an abundant number, because the sum of its proper divisors (143621309295) is greater than itself. Its abundance is 4628448990

Bases of 138992860305

• Binary: 10000001011100100111101011110010010001₂
• Hexadecimal: 0x205C9EBC91
• Base-36: 1RUORDE9

Squares and roots of 138992860305

• 138992860305 squared (138992860305²) is 19319015215765244693025
• 138992860305 cubed (138992860305³) is 2685205183115028089291766432872625
• The square root of 138992860305 is 372817.4624464365
• The cube root of 138992860305 is 5180.0127743879

Scales and comparisons

• 138,992,860,305 seconds is equal to 4,419 years, 28 weeks, 1 day, 15 hours, 51 minutes, 45 seconds.
• To count from 1 to 138,992,860,305 would take you about eight thousand, eight hundred thirty-nine 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 138992860305 cubic inches would be around 431.7 feet tall.

Recreational maths with 138992860305

• 138992860305 backwards is 503068299831
• The number of decimal digits it has is: 12
• The sum of 138992860305's digits is 54
• More coming soon!