990891621659268

Names of 990891621659268

• Cardinal: 990891621659268 can be written as Nine hundred ninety trillion, eight hundred ninety-one billion, six hundred twenty-one million, six hundred fifty-nine thousand, two hundred sixty-eight.

Scientific notation

• Scientific notation: 9.90891621659268 × 10¹⁴

Factors of 990891621659268

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 30465

Divisors of 990891621659268

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 81 84 108 126 162 189 252 324 378 567 756 1134 2268 2731 5462 8191 8193 10924 16382 16386 19117 19531 24573 24579 32764 32772 38234 39062 49146 49158 57337 57351 58593 73719 73737 76468 78124 98292 98316 114674 114702 117186 136717 147438 147474 172011 172053 175779 221157 221211 229348 229404 234372 273434 294876 294948 344022 344106 351558 410151 442314 442422 516033 516159 527337 546868 663471 688044 688212 703116 820302 884628 884844 1032066 1032318 1054674 1230453 1326942 1548099 1548477 1582011 1640604 2064132 2064636 2109348 2460906 2653884 3096198 3096954 3164022 3691359 4644297 4921812 6192396 6193908 6328044 7382718 9288594 11074077 14765436 18577188 22148154 22369621 44296308 44739242 53339161 67108863 89478484 106678322 134217726 156587347 159978421 160017483 201326589 213356644 268435452 313174694 319956842 320034966 373374127 402653178 469762041 479935263 480052449 603979767 626349388 639913684 640069932 746748254 805306356 939524082 959870526 960104898 1119848947 1120122381 1207959534 1409286123 1439805789 1440157347 1493496508 1811939301 1879048164 1919741052 1920209796 2239697894 2240244762 2415919068 2818572246 2879611578 2880314694 3359546841 3360367143 3623878602 4227858369 4319417367 4320472041 4479395788 4480489524 5637144492 5759223156 5760629388 6719093682 6720734286 7247757204 8455716738 8638834734 8640944082 10078640523 10081101429 12683575107 12958252101 13438187364 13441468572 16911433476 17277669468 17281888164 20157281046 20162202858 25367150214 25916504202 30235921569 30243304287 40314562092 40324405716 50734300428 51833008404 60471843138 60486608574 90707764707 120943686276 120973217148 181415529414 362831058828 436901067751 873802135502 1310703203253 1747604271004 2621406406506 3058307474257 3932109609759 5242812813012 6116614948514 7864219219518 9174922422771 11796328829277 12233229897028 15728438439036 18349844845542 23592657658554 27524767268313 35388986487831 36699689691084 47185315317108 55049534536626 70777972975662 82574301804939 110099069073252 141555945951324 165148603609878 247722905414817 330297207219756 495445810829634 990891621659268
• Sum of all divisors σ(n): 2962038857924608
• Sum of proper divisors (its aliquot sum) s(n): 1971147236265340
• 990891621659268 is an abundant number, because the sum of its proper divisors (1971147236265340) is greater than itself. Its abundance is 980255614606072

Bases of 990891621659268

• Binary: 11100001010011010111101111000111101011001010000100₂
• Hexadecimal: 0x38535EF1EB284
• Base-36: 9R8PBRH090

Squares and roots of 990891621659268

• 990891621659268 squared (990891621659268²) is 981866205874533915821490295824
• 990891621659268 cubed (990891621659268³) is 972922996991449604282326291480615155051296832
• The square root of 990891621659268 is 31478431.0546009901
• The cube root of 990891621659268 is 99695.4608894167

Scales and comparisons

• 990,891,621,659,268 seconds is equal to 31,507,288 years, 28 weeks, 11 hours, 7 minutes, 48 seconds.
• To count from 1 to 990,891,621,659,268 would take you about seventy-eight million, seven hundred sixty-eight thousand, two hundred twenty-one 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 990891621659268 cubic inches would be around 8308 feet tall.

Recreational maths with 990891621659268

• 990891621659268 backwards is 862956126198099
• 990891621659268 is a Harshad number.
• The number of decimal digits it has is: 15
• The sum of 990891621659268's digits is 81
• More coming soon!