21357828961909517

Names of 21357828961909517

• Cardinal: 21357828961909517 can be written as Twenty-one quadrillion, three hundred fifty-seven trillion, eight hundred twenty-eight billion, nine hundred sixty-one million, nine hundred nine thousand, five hundred seventeen.

Scientific notation

• Scientific notation: 2.1357828961909517 × 10¹⁶

Factors of 21357828961909517

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 71

Divisors of 21357828961909517

• Number of divisors d(n): 180
• Complete list of divisors:
  1 7 11 49 53 77 121 343 371 539 583 847 1331 2401 2597 2809 3773 4081 5929 6413 9317 14641 16807 18179 19663 26411 28567 30899 41503 44891 65219 70543 102487 127253 137641 148877 161051 184877 199969 216293 290521 314237 339889 456533 493801 717409 775973 890771 963487 1042139 1127357 1399783 1514051 1637647 2033647 2199659 2379223 3195731 3456607 3738779 5021863 5431811 6744409 7294973 7890481 7891499 8535703 9798481 10598357 11463529 15397613 16654561 18014117 22370117 24196249 26171453 35153041 38022677 41126569 47210863 51064811 55233367 55240493 59749921 74188499 80244703 86795291 107783291 116581927 126098819 169373743 183200171 198155287 246071287 266158739 287885983 357453677 386633569 386683451 418249447 452392259 519319493 561712921 607567037 816073489 882691733 954748201 1185616201 1282401197 1387087009 1863111173 2015201881 2179708157 2502175739 2706434983 2706784157 2927746129 3166745813 3931990447 4252969259 5712514423 6178842131 6683237407 8976808379 9709609063 10502230211 13041778211 14106413167 15257957099 18945044881 20494222903 22167220691 23976789727 27523933129 29770784813 43251894917 46782661849 62837658653 67967263441 73515611477 98744892169 106805699693 115524532321 132615314167 143459560321 155170544837 167837528089 208395493691 302763264419 327478632943 475770844087 514609280339 691214245183 747639897851 808671726247 1086193813859 1174862696623 1270769855531 1458768455837 2292350430601 3330395908609 3602264962373 5233479284957 5660702083729 7603356697013 8224038876361 8895388988717 16046453014207 25215854736611 36634354994699 39624914586103 57568272134527 62267722921019 176510983156277 277374402102721 402977904941689 435874060447133 1941620814719047 3051118423129931 21357828961909517
• Sum of all divisors σ(n): 27936060809757408
• Sum of proper divisors (its aliquot sum) s(n): 6578231847847891
• 21357828961909517 is a deficient number, because the sum of its proper divisors (6578231847847891) is less than itself. Its deficiency is 14779597114061626

Bases of 21357828961909517

• Binary: 1001011111000001101010100010000011100101011101100001101₂
• Hexadecimal: 0x4BE0D51072BB0D
• Base-36: 5UAPV6949OT

Squares and roots of 21357828961909517

• 21357828961909517 squared (21357828961909517²) is 456156857966180956568070895173289
• 21357828961909517 cubed (21357828961909517³) is 9742520152243745609743054737908189054188053291413
• The square root of 21357828961909517 is 146143179.6626497277
• The cube root of 21357828961909517 is 277450.6211386241

Scales and comparisons

• 21,357,828,961,909,517 seconds is equal to 679,112,896 years, 46 weeks, 13 hours, 5 minutes, 17 seconds.
• To count from 1 to 21,357,828,961,909,517 would take you about two billion, thirty-seven million, three hundred thirty-eight thousand, six hundred ninety 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 21357828961909517 cubic inches would be around 23120.9 feet tall.

Recreational maths with 21357828961909517

• 21357828961909517 backwards is 71590916982875312
• The number of decimal digits it has is: 17
• The sum of 21357828961909517's digits is 83
• More coming soon!