21405802748960

Names of 21405802748960

• Cardinal: 21405802748960 can be written as Twenty-one trillion, four hundred five billion, eight hundred two million, seven hundred forty-eight thousand, nine hundred sixty.

Scientific notation

• Scientific notation: 2.140580274896 × 10¹³

Factors of 21405802748960

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3876

Divisors of 21405802748960

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 47 56 70 80 94 112 140 160 188 224 235 257 280 329 376 470 514 521 560 658 752 940 1028 1042 1120 1285 1316 1504 1645 1799 1880 2056 2084 2570 2605 2632 3037 3290 3598 3647 3760 4112 4168 5140 5210 5264 6074 6580 7196 7294 7520 8224 8336 8995 10280 10420 10528 12079 12148 13160 14392 14588 15185 16672 17990 18235 20560 20840 21259 24158 24296 24487 26320 28784 29176 30370 35980 36470 41120 41680 42518 48316 48592 48974 52640 57568 58352 60395 60740 71960 72940 83360 84553 85036 96632 97184 97948 106295 116704 120790 121480 122435 133897 142739 143920 145880 169106 170072 171409 193264 195896 212590 241580 242960 244870 267794 285478 287840 291760 338212 340144 342818 386528 391792 422765 425180 483160 485920 489740 535588 570956 583520 669485 676424 680288 685636 713695 780509 783584 845530 850360 857045 937279 966320 979480 999173 1071176 1141912 1338970 1352848 1371272 1427390 1561018 1582277 1691060 1700720 1714090 1874558 1932640 1958960 1998346 2142352 2283824 2677940 2705696 2742544 2854780 3122036 3164554 3382120 3401440 3428180 3749116 3902545 3917920 3996692 4284704 4567648 4686395 4995865 5355880 5463563 5485088 5709560 6244072 6293159 6329108 6764240 6856360 7498232 7805090 7911385 7993384 9372790 9991730 10711760 10927126 11075939 11419120 12488144 12586318 12658216 13528480 13712720 14996464 15610180 15822770 15986768 18745580 19983460 21423520 21854252 22151878 22838240 24976288 25172636 25316432 27317815 27425440 29992928 31220360 31465795 31645540 31973536 36683923 37491160 39966920 43708504 44052113 44303756 50345272 50632864 54635630 55379695 62440720 62931590 63291080 73367846 74367019 74982320 79933840 87417008 88104226 88607512 100690544 109271260 110759390 124881440 125863180 126582160 146735692 148734038 149964640 159867680 174834016 176208452 177215024 183419615 201381088 218542520 220260565 221518780 251726360 253164320 256787461 293471384 297468076 352416904 354430048 366839230 371835095 406645189 437085040 440521130 443037560 503452720 513574922 520569133 586942768 594936152 704833808 733678460 743670190 813290378 874170080 881042260 886075120 1006905440 1027149844 1041138266 1173885536 1189872304 1283937305 1409667616 1467356920 1487340380 1626580756 1762084520 1772150240 2033225945 2054299688 2082276532 2379744608 2567874610 2602845665 2846516323 2934713840 2974680760 3253161512 3524169040 4066451890 4108599376 4164553064 5135749220 5205691330 5693032646 5869427680 5949361520 6506323024 7048338080 8132903780 8217198752 8329106128 10271498440 10411382660 11386065292 11898723040 13012646048 14232581615 16265807560 16658212256 19112323883 20542996880 20822765320 22772130584 28465163230 32531615120 38224647766 41085993760 41645530640 45544261168 56930326460 65063230240 76449295532 83291061280 91088522336 95561619415 113860652920 133786267181 152898591064 191123238830 227721305840 267572534362 305797182128 382246477660 455442611680 535145068724 611594364256 668931335905 764492955320 1070290137448 1337862671810 1528985910640 2140580274896 2675725343620 3057971821280 4281160549792 5351450687240 10702901374480 21405802748960
• Sum of all divisors σ(n): 59388314904576
• Sum of proper divisors (its aliquot sum) s(n): 37982512155616
• 21405802748960 is an abundant number, because the sum of its proper divisors (37982512155616) is greater than itself. Its abundance is 16576709406656

Bases of 21405802748960

• Binary: 100110111011111101101010001001101110000100000₂
• Hexadecimal: 0x1377ED44DC20
• Base-36: 7L5OU9WRK

Squares and roots of 21405802748960

• 21405802748960 squared (21405802748960²) is 458208391327383492781081600
• 21405802748960 cubed (21405802748960³) is 9808318442672244993097402828762075136000
• The square root of 21405802748960 is 4626640.5467639259
• The cube root of 21405802748960 is 27765.8201593609

Scales and comparisons

• 21,405,802,748,960 seconds is equal to 680,638 years, 16 weeks, 2 days, 15 hours, 9 minutes, 20 seconds.
• To count from 1 to 21,405,802,748,960 would take you about one million, seven hundred one thousand, five hundred ninety-five 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 21405802748960 cubic inches would be around 2313.8 feet tall.

Recreational maths with 21405802748960

• 21405802748960 backwards is 06984720850412
• 21405802748960 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21405802748960's digits is 56
• More coming soon!