21585818071012

Names of 21585818071012

• Cardinal: 21585818071012 can be written as Twenty-one trillion, five hundred eighty-five billion, eight hundred eighteen million, seventy-one thousand and twelve.

Scientific notation

• Scientific notation: 2.1585818071012 × 10¹³

Factors of 21585818071012

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 197

Divisors of 21585818071012

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 4 13 19 26 38 52 76 163 169 247 326 338 361 494 652 676 722 988 1444 2119 2197 3097 3211 4238 4394 4693 6194 6422 6859 8476 8788 9386 12388 12844 13718 18772 27436 27547 28561 40261 41743 55094 57122 58843 61009 80522 83486 89167 110188 114244 117686 122018 161044 166972 178334 235372 244036 356668 358111 371293 523393 542659 716222 742586 764959 793117 1046786 1085318 1118017 1159171 1432444 1485172 1529918 1586234 2093572 2170636 2236034 2318342 3059836 3172468 4472068 4636684 4655443 4826809 6804109 7054567 9310886 9653618 9944467 10310521 13608218 14109134 14534221 15069223 18621772 19307236 19888934 20621042 27216436 28218268 29068442 30138446 39777868 41242084 58136884 60276892 60520759 88453417 91709371 121041518 129278071 134036773 176906834 183418742 188944873 195899899 242083036 258556142 268073546 353813668 366837484 377889746 391799798 517112284 536147092 755779492 783599596 786769867 1149894421 1573539734 1680614923 1742478049 2299788842 2456283349 2546698687 3147079468 3361229846 3484956098 4599577684 4912566698 5093397374 6722459692 6969912196 9825133396 10186794748 14948627473 21847993999 29897254946 31931683537 33107082931 43695987998 59794509892 63863367074 66214165862 87391975996 127726734148 132428331724 284023921987 415111885981 568047843974 830223771962 1136095687948 1660447543924 5396454517753 10792909035506 21585818071012
• Sum of all divisors σ(n): 43461295475360
• Sum of proper divisors (its aliquot sum) s(n): 21875477404348
• 21585818071012 is an abundant number, because the sum of its proper divisors (21875477404348) is greater than itself. Its abundance is 289659333336

Bases of 21585818071012

• Binary: 100111010000111010111000001001010111111100100₂
• Hexadecimal: 0x13A1D704AFE4
• Base-36: 7NGDYR084

Squares and roots of 21585818071012

• 21585818071012 squared (21585818071012²) is 465947541794828220674704144
• 21585818071012 cubed (21585818071012³) is 10057858867818422150682342462781882673728
• The square root of 21585818071012 is 4646054.0322957931
• The cube root of 21585818071012 is 27843.4366039811

Scales and comparisons

• 21,585,818,071,012 seconds is equal to 686,362 years, 12 weeks, 5 days, 7 hours, 16 minutes, 52 seconds.
• To count from 1 to 21,585,818,071,012 would take you about one million, seven hundred fifteen thousand, nine hundred five 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 21585818071012 cubic inches would be around 2320.3 feet tall.

Recreational maths with 21585818071012

• 21585818071012 backwards is 21017081858512
• The number of decimal digits it has is: 14
• The sum of 21585818071012's digits is 49
• More coming soon!