21181555082142

Names of 21181555082142

• Cardinal: 21181555082142 can be written as Twenty-one trillion, one hundred eighty-one billion, five hundred fifty-five million, eighty-two thousand, one hundred forty-two.

Scientific notation

• Scientific notation: 2.1181555082142 × 10¹³

Factors of 21181555082142

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3404131

Divisors of 21181555082142

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 26 39 42 63 78 91 117 126 182 234 273 546 819 1638 3803 7606 11409 22818 26621 34227 49439 53242 68454 79863 98878 148317 159726 239589 296634 346073 444951 479178 692146 889902 1038219 2076438 3114657 3400303 6229314 6800606 10200909 20401818 23802121 30602727 44203939 47604242 61205454 71406363 88407878 132611817 142812726 214219089 265223634 309427573 397835451 428438178 618855146 795670902 928282719 1856565438 2784848157 5569696314 12931352309 25862704618 38794056927 77588113854 90519466163 116382170781 168107580017 181038932326 232764341562 271558398489 336215160034 504322740051 543116796978 814675195467 1008645480102 1176753060119 1512968220153 1629350390934 2353506120238 3025936440306 3530259180357 7060518360714 10590777541071 21181555082142
• Sum of all divisors σ(n): 56499016025088
• Sum of proper divisors (its aliquot sum) s(n): 35317460942946
• 21181555082142 is an abundant number, because the sum of its proper divisors (35317460942946) is greater than itself. Its abundance is 14135905860804

Bases of 21181555082142

• Binary: 100110100001110110111000100010000001110011110₂
• Hexadecimal: 0x1343B711039E
• Base-36: 7IAO705NI

Squares and roots of 21181555082142

• 21181555082142 squared (21181555082142²) is 448658275697815588367308164
• 21181555082142 cubed (21181555082142³) is 9503279979752132347229466137382447207288
• The square root of 21181555082142 is 4602342.3473424921
• The cube root of 21181555082142 is 27668.5211449923

Scales and comparisons

• 21,181,555,082,142 seconds is equal to 673,507 years, 48 weeks, 3 days, 12 hours, 35 minutes, 42 seconds.
• To count from 1 to 21,181,555,082,142 would take you about one million, six hundred eighty-three thousand, seven hundred sixty-nine 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 21181555082142 cubic inches would be around 2305.7 feet tall.

Recreational maths with 21181555082142

• 21181555082142 backwards is 24128055518112
• The number of decimal digits it has is: 14
• The sum of 21181555082142's digits is 45
• More coming soon!