21721307008160424

Names of 21721307008160424

• Cardinal: 21721307008160424 can be written as Twenty-one quadrillion, seven hundred twenty-one trillion, three hundred seven billion, eight million, one hundred sixty thousand, four hundred twenty-four.

Scientific notation

• Scientific notation: 2.1721307008160424 × 10¹⁶

Factors of 21721307008160424

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1162

Divisors of 21721307008160424

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 21 24 28 42 49 56 84 98 137 147 168 196 274 294 343 392 411 548 588 686 822 959 1013 1029 1096 1176 1372 1644 1918 2026 2058 2744 2877 3039 3288 3836 4052 4116 5754 6078 6713 7091 7672 8104 8232 11508 12156 13426 14182 18769 20139 21273 23016 24312 26852 28364 37538 40278 42546 46991 49637 53704 56307 56728 75076 80556 85092 93982 99274 112614 131383 138781 140973 148911 150152 161112 170184 187964 198548 225228 262766 277562 281946 297822 347459 375928 394149 397096 416343 450456 525532 555124 563892 595644 694918 788298 832686 919681 971467 1026169 1042377 1051064 1110248 1127784 1191288 1389836 1576596 1665372 1839362 1942934 2052338 2084754 2571353 2759043 2779672 2914401 3078507 3153192 3330744 3678724 3885868 4104676 4169508 5142706 5518086 5828802 6157014 6437767 6800269 7183183 7357448 7714059 7771736 8209352 8339016 10285412 11036172 11657604 12314028 12875534 13600538 14366366 15428118 17999471 19012997 19313301 20400807 20570824 21549549 22072344 23315208 24628056 25751068 27201076 28732732 30856236 35998942 38025994 38626602 40801614 43099098 47601883 50282281 51502136 53998413 54402152 57038991 57465464 61712472 71997884 76051988 77253204 81603228 86198196 95203766 100564562 107996826 114077982 125996297 133090979 140585153 142805649 143995768 150846843 152103976 154506408 163206456 172396392 190407532 201129124 215993652 228155964 251992594 266181958 281170306 285611298 301693686 351975967 377988891 380815064 399272937 402258248 421755459 431987304 456311928 503985188 532363916 562340612 571222596 603387372 703951934 755977782 798545874 843510918 881974079 931636853 984096071 1007970376 1055927901 1064727832 1124681224 1142445192 1206774744 1407903868 1511955564 1597091748 1687021836 1763948158 1863273706 1968192142 2111855802 2604780589 2645922237 2794910559 2815807736 2952288213 3023911128 3194183496 3374043672 3527896316 3726547412 3936384284 4223711604 5209561178 5291844474 5589821118 5904576426 6521457971 6888672497 7055792632 7453094824 7814341767 7872768568 8447423208 10419122356 10583688948 11179642236 11809152852 13042915942 13777344994 15628683534 18233464123 19260165961 19564373913 20666017491 20838244712 21167377896 22359284472 23618305704 26085831884 27554689988 31257367068 36466928246 38520331922 39128747826 41332034982 48220707479 52171663768 54700392369 55109379976 57780497883 62514734136 72933856492 77040663844 78257495652 82664069964 96441414958 109400784738 115560995766 127634248861 134821161727 144662122437 145867712984 154081327688 156514991304 165328139928 192882829916 218801569476 231121991532 255268497722 269642323454 289324244874 382902746583 385765659832 404463485181 437603138952 462243983064 510536995444 539284646908 578648489748 765805493166 808926970362 893439742027 943748132089 1021073990888 1078569293816 1157296979496 1531610986332 1617853940724 1786879484054 1887496264178 2638642736657 2680319226081 2831244396267 3063221972664 3235707881448 3573758968108 3774992528356 5277285473314 5360638452162 5662488792534 6606236924623 7147517936216 7549985056712 7915928209971 10554570946628 10721276904324 11324977585068 13212473849246 15831856419942 18470499156599 19818710773869 21109141893256 21442553808648 22649955170136 26424947698492 31663712839884 36940998313198 39637421547738 52849895396984 55411497469797 63327425679768 73881996626396 79274843095476 110822994939594 129293494096193 147763993252792 158549686190952 221645989879188 258586988192386 387880482288579 443291979758376 517173976384772 775760964577158 905054458673351 1034347952769544 1551521929154316 1810108917346702 2715163376020053 3103043858308632 3620217834693404 5430326752040106 7240435669386808 10860653504080212 21721307008160424
• Sum of all divisors σ(n): 63856104901920000
• Sum of proper divisors (its aliquot sum) s(n): 42134797893759576
• 21721307008160424 is an abundant number, because the sum of its proper divisors (42134797893759576) is greater than itself. Its abundance is 20413490885599152

Bases of 21721307008160424

• Binary: 1001101001010110110100111100100010001110101001010101000₂
• Hexadecimal: 0x4D2B69E44752A8
• Base-36: 5XVK6OL4Q7C

Squares and roots of 21721307008160424

• 21721307008160424 squared (21721307008160424²) is 471815178142759149974928519859776
• 21721307008160424 cubed (21721307008160424³) is 10248442335548773226944911876604797538980192705024
• The square root of 21721307008160424 is 147381501.5806272209
• The cube root of 21721307008160424 is 279015.7063829971

Scales and comparisons

• 21,721,307,008,160,424 seconds is equal to 690,670,374 years, 23 weeks, 1 day, 3 hours, 40 minutes, 24 seconds.
• To count from 1 to 21,721,307,008,160,424 would take you about two billion, seventy-two million, eleven thousand, one hundred twenty-three 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 21721307008160424 cubic inches would be around 23251.3 feet tall.

Recreational maths with 21721307008160424

• 21721307008160424 backwards is 42406180070312712
• The number of decimal digits it has is: 17
• The sum of 21721307008160424's digits is 48
• More coming soon!