21423901653

Names of 21423901653

• Cardinal: 21423901653 can be written as Twenty-one billion, four hundred twenty-three million, nine hundred one thousand, six hundred fifty-three.

Scientific notation

• Scientific notation: 2.1423901653 × 10¹⁰

Factors of 21423901653

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 245

Divisors of 21423901653

• Number of divisors d(n): 320
• Complete list of divisors:
  1 3 7 9 11 17 21 27 33 37 43 51 63 77 81 99 111 119 127 129 153 187 189 231 259 297 301 333 357 381 387 407 459 473 561 567 629 693 731 777 889 891 903 999 1071 1143 1161 1221 1309 1377 1397 1419 1591 1683 1887 2079 2159 2193 2331 2667 2709 2849 2997 3213 3311 3429 3483 3663 3927 4191 4257 4403 4699 4773 5049 5117 5461 5661 6237 6477 6579 6919 6993 8001 8041 8127 8547 9639 9779 9933 10287 10989 11137 11781 12573 12771 13209 14097 14319 15113 15147 15351 16383 16983 17501 19431 19737 20757 20979 23749 24003 24123 24381 25641 27047 29337 29799 32893 32967 33411 35343 37719 38227 38313 39627 42291 42957 45339 46053 48433 49149 50949 51689 52503 56287 58293 59211 60071 62271 71247 72009 72369 76923 79883 81141 88011 89397 92837 98679 100233 106029 113157 114681 118881 122507 126873 128871 136017 138159 145299 147447 155067 157509 166243 168861 174879 180213 186813 189329 202057 213741 217107 230769 239649 243423 264033 268191 278511 296037 297517 300699 344043 356643 361823 367521 380619 408051 414477 420497 435897 442341 465201 472527 498729 506583 540639 559181 560439 567987 606171 641223 649859 651321 718947 730269 792099 835533 878713 888111 892551 902097 1021207 1032129 1085469 1102563 1224153 1261491 1307691 1395603 1414399 1417581 1496187 1519749 1621917 1677543 1703961 1818513 1923669 1949577 2082619 2156841 2190807 2222627 2506599 2636139 2664333 2677653 3063621 3096387 3256407 3307689 3434969 3784473 3923073 4186809 4243197 4488561 4559247 4865751 5032629 5111883 5455539 5848731 6150991 6247857 6470523 6667881 7148449 7519797 7908417 8032959 9190863 9769221 9923067 10304907 11353419 12729591 13465683 15097887 15335649 15558389 16366617 17546193 18452973 18743571 20003643 21445347 23725251 24044783 24098877 27572589 29307663 30914721 34060257 37784659 38188773 45293661 46675167 52638579 55358919 56230713 60010929 64336041 71175753 72134349 82717767 92744163 113353977 114566319 140025501 166076757 168692139 180032787 193008123 216403047 264492613 278232489 340061931 420076503 498230271 579024369 649209141 793477839 1020185793 1260229509 1947627423 2380433517 3060557379 7141300551 21423901653
• Sum of all divisors σ(n): 44748177408
• Sum of proper divisors (its aliquot sum) s(n): 23324275755
• 21423901653 is an abundant number, because the sum of its proper divisors (23324275755) is greater than itself. Its abundance is 1900374102

Bases of 21423901653

• Binary: 10011111100111101101100101111010101₂
• Hexadecimal: 0x4FCF6CBD5
• Base-36: 9UB8KB9

Squares and roots of 21423901653

• 21423901653 squared (21423901653²) is 458983562037416132409
• 21423901653 cubed (21423901653³) is 9833218693433227526966041972077
• The square root of 21423901653 is 146369.0597530775
• The cube root of 21423901653 is 2777.3643417299

Scales and comparisons

• 21,423,901,653 seconds is equal to 681 years, 11 weeks, 19 hours, 47 minutes, 33 seconds.
• To count from 1 to 21,423,901,653 would take you about one thousand, three hundred sixty-two 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 21423901653 cubic inches would be around 231.4 feet tall.

Recreational maths with 21423901653

• 21423901653 backwards is 35610932412
• The number of decimal digits it has is: 11
• The sum of 21423901653's digits is 36
• More coming soon!