21494817162

Names of 21494817162

• Cardinal: 21494817162 can be written as Twenty-one billion, four hundred ninety-four million, eight hundred seventeen thousand, one hundred sixty-two.

Scientific notation

• Scientific notation: 2.1494817162 × 10¹⁰

Factors of 21494817162

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1874682

Divisors of 21494817162

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 26 39 42 49 63 78 91 98 117 126 147 182 234 273 294 441 546 637 819 882 1274 1638 1911 3822 5733 11466 1874657 3749314 5623971 11247942 13122599 16871913 24370541 26245198 33743826 39367797 48741082 73111623 78735594 91858193 118103391 146223246 170593787 183716386 219334869 236206782 275574579 341187574 438669738 511781361 551149158 826723737 1023562722 1194156509 1535344083 1653447474 2388313018 3070688166 3582469527 7164939054 10747408581 21494817162
• Sum of all divisors σ(n): 58343106276
• Sum of proper divisors (its aliquot sum) s(n): 36848289114
• 21494817162 is an abundant number, because the sum of its proper divisors (36848289114) is greater than itself. Its abundance is 15353471952

Bases of 21494817162

• Binary: 10100000001001100001110000110001010₂
• Hexadecimal: 0x50130E18A
• Base-36: 9VHGJ2I

Squares and roots of 21494817162

• 21494817162 squared (21494817162²) is 462027164827809734244
• 21494817162 cubed (21494817162³) is 9931189431851007450498590295528
• The square root of 21494817162 is 146611.1085900383
• The cube root of 21494817162 is 2780.4254288283

Scales and comparisons

• 21,494,817,162 seconds is equal to 683 years, 24 weeks, 2 days, 14 hours, 32 minutes, 42 seconds.
• To count from 1 to 21,494,817,162 would take you about one thousand, three hundred sixty-six 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 21494817162 cubic inches would be around 231.7 feet tall.

Recreational maths with 21494817162

• 21494817162 backwards is 26171849412
• The number of decimal digits it has is: 11
• The sum of 21494817162's digits is 45
• More coming soon!