21558278142

Names of 21558278142

• Cardinal: 21558278142 can be written as Twenty-one billion, five hundred fifty-eight million, two hundred seventy-eight thousand, one hundred forty-two.

Scientific notation

• Scientific notation: 2.1558278142 × 10¹⁰

Factors of 21558278142

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 102

Divisors of 21558278142

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 6 9 18 19 27 37 38 41 54 57 74 81 82 111 114 123 162 171 222 243 246 333 342 361 369 486 513 666 703 722 729 738 779 999 1026 1083 1107 1406 1458 1517 1539 1558 1998 2109 2166 2187 2214 2337 2997 3034 3078 3249 3321 4218 4374 4551 4617 4674 5994 6327 6498 6561 6642 7011 8991 9102 9234 9747 9963 12654 13122 13357 13653 13851 14022 14801 17982 18981 19494 19683 19926 21033 26714 26973 27306 27702 28823 29241 29602 29889 37962 39366 40071 40959 41553 42066 44403 53946 56943 57646 58482 59778 63099 80142 80919 81918 83106 86469 87723 88806 89667 113886 120213 122877 124659 126198 133209 161838 170829 172938 175446 179334 189297 240426 242757 245754 249318 259407 263169 266418 269001 341658 360639 368631 373977 378594 399627 485514 512487 518814 526338 538002 547637 567891 721278 728271 737262 747954 778221 789507 799254 807003 1024974 1081917 1095274 1105893 1135782 1198881 1456542 1537461 1556442 1579014 1614006 1642911 1703673 2163834 2211786 2334663 2368521 2397762 3074922 3245751 3285822 3317679 3407346 3596643 4612383 4669326 4737042 4928733 5111019 6491502 6635358 7003989 7105563 7193286 9224766 9737253 9857466 9953037 10222038 10789929 13837149 14007978 14211126 14786199 15333057 19474506 19906074 21011967 21579858 27674298 29211759 29572398 29859111 30666114 32369787 42023934 44358597 58423518 59718222 63035901 64739574 87635277 88717194 97109361 126071802 133075791 175270554 189107703 194218722 262905831 266151582 291328083 378215406 399227373 525811662 567323109 582656166 798454746 1134646218 1197682119 2395364238 3593046357 7186092714 10779139071 21558278142
• Sum of all divisors σ(n): 53858507472
• Sum of proper divisors (its aliquot sum) s(n): 32300229330
• 21558278142 is an abundant number, because the sum of its proper divisors (32300229330) is greater than itself. Its abundance is 10741951188

Bases of 21558278142

• Binary: 10100000100111110010011011111111110₂
• Hexadecimal: 0x504F937FE
• Base-36: 9WJ8PVI

Squares and roots of 21558278142

• 21558278142 squared (21558278142²) is 464759356447834972164
• 21558278142 cubed (21558278142³) is 10019411475399347443626339639288
• The square root of 21558278142 is 146827.3753153679
• The cube root of 21558278142 is 2783.1590359959

Scales and comparisons

• 21,558,278,142 seconds is equal to 685 years, 25 weeks, 2 days, 2 hours, 35 minutes, 42 seconds.
• To count from 1 to 21,558,278,142 would take you about one thousand, three hundred seventy 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 21558278142 cubic inches would be around 231.9 feet tall.

Recreational maths with 21558278142

• 21558278142 backwards is 24187285512
• The number of decimal digits it has is: 11
• The sum of 21558278142's digits is 45
• More coming soon!