21661448521216

Names of 21661448521216

• Cardinal: 21661448521216 can be written as Twenty-one trillion, six hundred sixty-one billion, four hundred forty-eight million, five hundred twenty-one thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 2.1661448521216 × 10¹³

Factors of 21661448521216

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 12822

Divisors of 21661448521216

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 49 53 56 64 98 106 112 128 196 212 224 256 371 392 424 448 512 742 784 848 896 1439 1484 1568 1696 1792 2597 2878 2968 3136 3392 3584 5194 5756 5936 6272 6784 10073 10388 11321 11512 11872 12544 13568 20146 20776 22642 23024 23744 25088 27136 40292 41552 45284 46048 47488 70511 76267 79247 80584 83104 90568 92096 94976 141022 152534 158494 161168 166208 181136 184192 189952 282044 305068 316988 322336 332416 362272 368384 533869 554729 564088 600013 610136 633976 644672 664832 724544 736768 1067738 1109458 1128176 1200026 1220272 1267952 1289344 1329664 1449088 2135476 2218916 2256352 2400052 2440544 2535904 2578688 2898176 3737083 4200091 4270952 4437832 4512704 4800104 4881088 5071808 5157376 5796352 7474166 8400182 8541904 8875664 9025408 9600208 9762176 10143616 14948332 16290919 16800364 17083808 17751328 18050816 19200416 19524352 20287232 29400637 29896664 32581838 33600728 34167616 35502656 36101632 38400832 39048704 40574464 58801274 59793328 65163676 67201456 68335232 71005312 76801664 114036433 117602548 119586656 130327352 134402912 136670464 142010624 153603328 228072866 235205096 239173312 260654704 268805824 273340928 284021248 307206656 456145732 470410192 478346624 521309408 537611648 798255031 863418707 912291464 940820384 956693248 1042618816 1075223296 1596510062 1726837414 1824582928 1881640768 1913386496 2085237632 2150446592 3193020124 3453674828 3649165856 3763281536 4170475264 6043930949 6386040248 6907349656 7298331712 7526563072 8340950528 12087861898 12772080496 13814699312 14596663424 15053126144 24175723796 25544160992 27629398624 29193326848 42307516643 48351447592 51088321984 55258797248 58386653696 84615033286 96702895184 102176643968 110517594496 169230066572 193405790368 204353287936 221035188992 338460133144 386811580736 408706575872 442070377984 676920266288 773623161472 1353840532576 1547246322944 2707681065152 3094492645888 5415362130304 10830724260608 21661448521216
• Sum of all divisors σ(n): 51336929761920
• Sum of proper divisors (its aliquot sum) s(n): 29675481240704
• 21661448521216 is an abundant number, because the sum of its proper divisors (29675481240704) is greater than itself. Its abundance is 8014032719488

Bases of 21661448521216

• Binary: 100111011001101110010111100011100011000000000₂
• Hexadecimal: 0x13B372F1C600
• Base-36: 7OF4R6134

Squares and roots of 21661448521216

• 21661448521216 squared (21661448521216²) is 469218352037290833202118656
• 21661448521216 cubed (21661448521216³) is 10163949177865582019752945675049365405696
• The square root of 21661448521216 is 4654186.1287679503
• The cube root of 21661448521216 is 27875.9171432895

Scales and comparisons

• 21,661,448,521,216 seconds is equal to 688,767 years, 3 weeks, 17 hours, 40 minutes, 16 seconds.
• To count from 1 to 21,661,448,521,216 would take you about one million, seven hundred twenty-one thousand, nine hundred seventeen 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 21661448521216 cubic inches would be around 2323 feet tall.

Recreational maths with 21661448521216

• 21661448521216 backwards is 61212584416612
• 21661448521216 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21661448521216's digits is 49
• More coming soon!