21056771368920

Names of 21056771368920

• Cardinal: 21056771368920 can be written as Twenty-one trillion, fifty-six billion, seven hundred seventy-one million, three hundred sixty-eight thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.105677136892 × 10¹³

Factors of 21056771368920

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 42559634

Divisors of 21056771368920

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 19 20 21 24 28 30 31 35 38 40 42 56 57 60 62 70 76 84 93 95 105 114 120 124 133 140 152 155 168 186 190 210 217 228 248 266 280 285 310 372 380 399 420 434 456 465 532 570 589 620 651 665 744 760 798 840 868 930 1064 1085 1140 1178 1240 1302 1330 1596 1736 1767 1860 1995 2170 2280 2356 2604 2660 2945 3192 3255 3534 3720 3990 4123 4340 4712 5208 5320 5890 6510 7068 7980 8246 8680 8835 11780 12369 13020 14136 15960 16492 17670 20615 23560 24738 26040 32984 35340 41230 49476 61845 70680 82460 98952 123690 164920 247380 494760 42559567 85119134 127678701 170238268 212797835 255357402 297916969 340476536 425595670 510714804 595833938 638393505 808631773 851191340 893750907 1021429608 1191667876 1276787010 1319346577 1489584845 1617263546 1702382680 1787501814 2383335752 2425895319 2553574020 2638693154 2979169690 3234527092 3575003628 3958039731 4043158865 4468754535 4851790638 5107148040 5277386308 5660422411 5958339380 6469054184 6596732885 7150007256 7916079462 8086317730 8937509070 9235426039 9703581276 10554772616 11320844822 11916678760 12129476595 13193465770 15832158924 16172635460 16981267233 17875018140 18470852078 19407162552 19790198655 22641689644 24258953190 25067584963 26386931540 27706278117 28302112055 31664317848 32345270920 33962534466 35750036280 36941704156 39580397310 45283379288 46177130195 48517906380 50135169926 52773863080 55412556234 56604224110 67925068932 73883408312 75202754889 79160794620 84906336165 92354260390 97035812760 100270339852 110825112468 113208448220 125337924815 135850137864 138531390585 150405509778 158321589240 169812672330 175473094741 184708520780 200540679704 221650224936 226416896440 250675849630 277062781170 300811019556 339625344660 350946189482 369417041560 376013774445 501351699260 526419284223 554125562340 601622039112 679250689320 701892378964 752027548890 877365473705 1002703398520 1052838568446 1108251124680 1403784757928 1504055097780 1754730947410 2105677136892 2632096421115 3008110195560 3509461894820 4211354273784 5264192842230 7018923789640 10528385684460 21056771368920
• Sum of all divisors σ(n): 78445795737600
• Sum of proper divisors (its aliquot sum) s(n): 57389024368680
• 21056771368920 is an abundant number, because the sum of its proper divisors (57389024368680) is greater than itself. Its abundance is 36332252999760

Bases of 21056771368920

• Binary: 100110010011010101001011000001010011111011000₂
• Hexadecimal: 0x1326A960A7D8
• Base-36: 7GPCI04BC

Squares and roots of 21056771368920

• 21056771368920 squared (21056771368920²) is 443387620482969050741966400
• 21056771368920 cubed (21056771368920³) is 9336311752319349650137908774220644288000
• The square root of 21056771368920 is 4588765.7783896531
• The cube root of 21056771368920 is 27614.0809656037

Scales and comparisons

• 21,056,771,368,920 seconds is equal to 669,540 years, 10 weeks, 1 day, 14 hours, 2 minutes.
• To count from 1 to 21,056,771,368,920 would take you about one million, six hundred seventy-three thousand, eight hundred fifty 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 21056771368920 cubic inches would be around 2301.2 feet tall.

Recreational maths with 21056771368920

• 21056771368920 backwards is 02986317765012
• 21056771368920 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21056771368920's digits is 57
• More coming soon!