21181317390324

Names of 21181317390324

• Cardinal: 21181317390324 can be written as Twenty-one trillion, one hundred eighty-one billion, three hundred seventeen million, three hundred ninety thousand, three hundred twenty-four.

Scientific notation

• Scientific notation: 2.1181317390324 × 10¹³

Factors of 21181317390324

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 71050614

Divisors of 21181317390324

• Number of divisors d(n): 162
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 18 21 26 28 36 39 42 49 52 63 78 84 91 98 117 126 147 156 169 182 196 234 252 273 294 338 364 441 468 507 546 588 637 676 819 882 1014 1092 1183 1274 1521 1638 1764 1911 2028 2366 2548 3042 3276 3549 3822 4732 5733 6084 7098 7644 8281 10647 11466 14196 16562 21294 22932 24843 33124 42588 49686 74529 99372 149058 298116 71050589 142101178 213151767 284202356 426303534 497354123 639455301 852607068 923657657 994708246 1278910602 1492062369 1847315314 1989416492 2557821204 2770972971 2984124738 3481478861 3694630628 4476187107 5541945942 5968249476 6465603599 6962957722 8312918913 8952374214 10444436583 11083891884 12007549541 12931207198 13925915444 16625837826 17904748428 19396810797 20888873166 24015099082 25862414396 31333309749 33251675652 36022648623 38793621594 41777746332 45259225193 48030198164 58190432391 62666619498 72045297246 77587243188 84052846787 90518450386 108067945869 116380864782 125333238996 135777675579 144090594492 168105693574 181036900772 216135891738 232761729564 252158540361 271555351158 336211387148 407333026737 432271783476 504317080722 543110702316 588369927509 756475621083 814666053474 1008634161444 1176739855018 1512951242166 1629332106948 1765109782527 2353479710036 3025902484332 3530219565054 5295329347581 7060439130108 10590658695162 21181317390324
• Sum of all divisors σ(n): 67442712090390
• Sum of proper divisors (its aliquot sum) s(n): 46261394700066
• 21181317390324 is an abundant number, because the sum of its proper divisors (46261394700066) is greater than itself. Its abundance is 25080077309742

Bases of 21181317390324

• Binary: 100110100001110101000111001100001111111110100₂
• Hexadecimal: 0x1343A8E61FF4
• Base-36: 7IAK9HLH0

Squares and roots of 21181317390324

• 21181317390324 squared (21181317390324²) is 448648206389641905768824976
• 21181317390324 cubed (21181317390324³) is 9502960056138593233404197761484231932224
• The square root of 21181317390324 is 4602316.5243520573
• The cube root of 21181317390324 is 27668.4176491963

Scales and comparisons

• 21,181,317,390,324 seconds is equal to 673,500 years, 19 weeks, 3 days, 11 hours, 5 minutes, 24 seconds.
• To count from 1 to 21,181,317,390,324 would take you about one million, six hundred eighty-three thousand, seven hundred fifty 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 21181317390324 cubic inches would be around 2305.7 feet tall.

Recreational maths with 21181317390324

• 21181317390324 backwards is 42309371318112
• The number of decimal digits it has is: 14
• The sum of 21181317390324's digits is 45
• More coming soon!