21955566556521

Names of 21955566556521

• Cardinal: 21955566556521 can be written as Twenty-one trillion, nine hundred fifty-five billion, five hundred sixty-six million, five hundred fifty-six thousand, five hundred twenty-one.

Scientific notation

• Scientific notation: 2.1955566556521 × 10¹³

Factors of 21955566556521

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 172

Divisors of 21955566556521

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 9 13 27 29 39 81 87 117 127 169 243 261 351 377 381 507 729 783 1053 1131 1143 1521 1651 2187 2349 3159 3393 3429 3683 4563 4901 4953 7047 9477 10179 10287 11049 13689 14703 14859 16129 21141 21463 28431 30537 30861 33147 41067 44109 44577 47879 48387 63423 64389 91611 92583 99441 123201 132327 133731 143637 145161 193167 209677 274833 277749 298323 369603 396981 401193 430911 435483 467741 579501 622427 629031 824499 894969 1190943 1203579 1292733 1306449 1403223 1738503 1867281 1887093 2048383 2684907 2725801 3572829 3610737 3878199 3919347 4209669 5215509 5601843 5661279 6080633 6145149 8054721 8177403 10718487 11634597 11758041 12629007 15646527 16805529 16983837 18241899 18435447 24532209 26628979 34903791 35274123 37887021 46939581 50416587 50951511 54725697 55306341 59403107 73596627 79048229 79886937 104711373 113661063 151249761 152854533 164177091 165919023 178209321 220789881 237144687 239660811 340983189 346176727 453749283 458563599 492531273 497757069 534627963 662369643 711434061 718982433 772240391 1022949567 1038530181 1361247849 1477593819 1493271207 1603883889 1987108929 2134302183 2156947299 2316721173 3115590543 4432781457 4479813621 4811651667 5961326787 6402906549 6470841897 6950163519 9346771629 10039125083 13298344371 14434955001 19208719647 19412525691 20850490557 28040314887 30117375249 43304865003 57626158941 58237577073 62551471671 84120944661 90352125747 129914595009 172878476823 187654415013 252362833983 271056377241 562963245039 757088501949 813169131723 1688889735117 2439507395169 7318522185507 21955566556521
• Sum of all divisors σ(n): 37178385408000
• Sum of proper divisors (its aliquot sum) s(n): 15222818851479
• 21955566556521 is a deficient number, because the sum of its proper divisors (15222818851479) is less than itself. Its deficiency is 6732747705042

Bases of 21955566556521

• Binary: 100111111011111101101101111101101010101101001₂
• Hexadecimal: 0x13F7EDBED569
• Base-36: 7S68XG9K9

Squares and roots of 21955566556521

• 21955566556521 squared (21955566556521²) is 482046902817823401487623441
• 21955566556521 cubed (21955566556521³) is 10583612858181532070783911861316291008761
• The square root of 21955566556521 is 4685676.7447745475
• The cube root of 21955566556521 is 28001.5163109629

Scales and comparisons

• 21,955,566,556,521 seconds is equal to 698,119 years, 5 weeks, 2 days, 15 hours, 55 minutes, 21 seconds.
• To count from 1 to 21,955,566,556,521 would take you about one million, seven hundred forty-five thousand, two hundred ninety-seven 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 21955566556521 cubic inches would be around 2333.5 feet tall.

Recreational maths with 21955566556521

• 21955566556521 backwards is 12565566555912
• The number of decimal digits it has is: 14
• The sum of 21955566556521's digits is 63
• More coming soon!