21668938521984

Names of 21668938521984

• Cardinal: 21668938521984 can be written as Twenty-one trillion, six hundred sixty-eight billion, nine hundred thirty-eight million, five hundred twenty-one thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 2.1668938521984 × 10¹³

Factors of 21668938521984

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 6109

Divisors of 21668938521984

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 54 64 72 78 96 104 108 117 128 144 156 169 192 208 216 234 288 312 338 351 384 416 432 468 507 576 624 676 702 832 864 936 1014 1152 1248 1352 1404 1521 1664 1728 1872 2028 2496 2704 2808 3042 3456 3744 4056 4563 4992 5408 5616 6084 6091 7488 8112 9126 10816 11232 12168 12182 14976 16224 18252 18273 21632 22464 24336 24364 32448 36504 36546 44928 48672 48728 54819 64896 73008 73092 79183 97344 97456 109638 146016 146184 158366 164457 194688 194912 219276 237549 292032 292368 316732 328914 389824 438552 475098 584064 584736 633464 657828 712647 779648 877104 950196 1029379 1169472 1266928 1315656 1425294 1754208 1900392 2058758 2137941 2338944 2533856 2631312 2850588 3088137 3508416 3800784 4117516 4275882 5067712 5262624 5701176 6176274 7016832 7601568 8235032 8551764 9264411 10135424 10525248 11402352 12352548 15203136 16470064 17103528 18528822 21050496 22804704 24705096 27793233 30406272 32940128 34207056 37057644 37100281 45609408 49410192 55586466 65880256 68414112 74115288 74200562 91218816 98820384 111172932 111300843 131760512 136828224 148230576 148401124 197640768 222345864 222601686 273656448 296461152 296802248 333902529 395281536 444691728 445203372 482303653 592922304 593604496 667805058 889383456 890406744 964607306 1001707587 1185844608 1187208992 1335610116 1446910959 1778766912 1780813488 1929214612 2003415174 2374417984 2671220232 2893821918 3557533824 3561626976 3858429224 4006830348 4340732877 4748835968 5342440464 5787643836 6269947489 7123253952 7716858448 8013660696 8681465754 10684880928 11575287672 12539894978 13022198631 14246507904 15433716896 16027321392 17362931508 18809842467 21369761856 23150575344 25079789956 26044397262 30867433792 32054642784 34725863016 37619684934 42739523712 46301150688 50159579912 52088794524 56429527401 61734867584 64109285568 69451726032 75239369868 92602301376 100319159824 104177589048 112859054802 128218571136 138903452064 150478739736 169288582203 185204602752 200638319648 208355178096 225718109604 277806904128 300957479472 338577164406 401276639296 416710356192 451436219208 555613808256 601914958944 677154328812 802553278592 833420712384 902872438416 1203829917888 1354308657624 1666841424768 1805744876832 2407659835776 2708617315248 3611489753664 5417234630496 7222979507328 10834469260992 21668938521984
• Sum of all divisors σ(n): 69262755841800
• Sum of proper divisors (its aliquot sum) s(n): 47593817319816
• 21668938521984 is an abundant number, because the sum of its proper divisors (47593817319816) is greater than itself. Its abundance is 25924878797832

Bases of 21668938521984

• Binary: 100111011010100110001011000100001110110000000₂
• Hexadecimal: 0x13B531621D80
• Base-36: 7OIKMIQO0

Squares and roots of 21668938521984

• 21668938521984 squared (21668938521984²) is 469542896669522138451296256
• 21668938521984 cubed (21668938521984³) is 10174496161366161082872398508257552891904
• The square root of 21668938521984 is 4654990.7112672093
• The cube root of 21668938521984 is 27879.1297105427

Scales and comparisons

• 21,668,938,521,984 seconds is equal to 689,005 years, 11 weeks, 2 days, 13 hours, 26 minutes, 24 seconds.
• To count from 1 to 21,668,938,521,984 would take you about one million, seven hundred twenty-two thousand, five hundred thirteen 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 21668938521984 cubic inches would be around 2323.3 feet tall.

Recreational maths with 21668938521984

• 21668938521984 backwards is 48912583986612
• 21668938521984 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21668938521984's digits is 72
• More coming soon!