21425662501097820

Names of 21425662501097820

• Cardinal: 21425662501097820 can be written as Twenty-one quadrillion, four hundred twenty-five trillion, six hundred sixty-two billion, five hundred one million, ninety-seven thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 2.142566250109782 × 10¹⁶

Factors of 21425662501097820

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2226788606

Divisors of 21425662501097820

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 31 35 42 60 62 70 84 93 105 124 140 155 186 210 217 310 372 420 434 465 620 651 739 868 930 1085 1302 1478 1860 2170 2217 2604 2956 3255 3695 4340 4434 5173 6510 7390 8868 10346 11085 13020 14780 15519 20692 22170 22909 25865 31038 44340 45818 51730 62076 68727 77595 91636 103460 114545 137454 155190 160363 229090 274908 310380 320726 343635 458180 481089 641452 687270 801815 962178 1374540 1603630 1924356 2405445 3207260 4810890 9621780 2226787819 4453575638 6680363457 8907151276 11133939095 13360726914 15587514733 22267878190 26721453828 31175029466 33401817285 44535756380 46762544199 62350058932 66803634570 69030422389 77937573665 93525088398 133607269140 138060844778 155875147330 187050176796 207091267167 233812720995 276121689556 311750294660 345152111945 414182534334 467625441990 483212956723 690304223890 828365068668 935250883980 966425913446 1035456335835 1380608447780 1449638870169 1645596198241 1932851826892 2070912671670 2416064783615 2899277740338 3291192396482 4141825343340 4832129567230 4936788594723 5798555480676 6582384792964 7248194350845 8227980991205 9664259134460 9873577189446 11519173387687 14496388701690 16455961982410 19747154378892 23038346775374 24683942973615 28992777403380 32911923964820 34557520163061 46076693550748 49367885947230 51013482145471 57595866938435 69115040326122 98735771894460 102026964290942 115191733876870 138230080652244 153040446436413 172787600815305 204053928581884 230383467753740 255067410727355 306080892872826 345575201630610 357094375018297 510134821454710 612161785745652 691150403261220 714188750036594 765202232182065 1020269642909420 1071283125054891 1428377500073188 1530404464364130 1785471875091485 2142566250109782 3060808928728260 3570943750182970 4285132500219564 5356415625274455 7141887500365940 10712831250548910 21425662501097820
• Sum of all divisors σ(n): 70869571016294400
• Sum of proper divisors (its aliquot sum) s(n): 49443908515196580
• 21425662501097820 is an abundant number, because the sum of its proper divisors (49443908515196580) is greater than itself. Its abundance is 28018246014098760

Bases of 21425662501097820

• Binary: 1001100000111101000011011001010011101001001000101011100₂
• Hexadecimal: 0x4C1E86CA74915C
• Base-36: 5UYRHGYXVTO

Squares and roots of 21425662501097820

• 21425662501097820 squared (21425662501097820²) is 459059013610949291612705208752400
• 21425662501097820 cubed (21425662501097820³) is 9835643493715069993030274866039228497272559768000
• The square root of 21425662501097820 is 146375074.7261903875
• The cube root of 21425662501097820 is 277744.0430931895

Scales and comparisons

• 21,425,662,501,097,820 seconds is equal to 681,269,793 years, 31 weeks, 4 days, 19 hours, 37 minutes.
• To count from 1 to 21,425,662,501,097,820 would take you about two billion, forty-three million, eight hundred nine thousand, three hundred eighty 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 21425662501097820 cubic inches would be around 23145.3 feet tall.

Recreational maths with 21425662501097820

• 21425662501097820 backwards is 02879010526652412
• 21425662501097820 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21425662501097820's digits is 60
• More coming soon!