21498005518

Names of 21498005518

• Cardinal: 21498005518 can be written as Twenty-one billion, four hundred ninety-eight million, five thousand, five hundred eighteen.

Scientific notation

• Scientific notation: 2.1498005518 × 10¹⁰

Factors of 21498005518

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 3049

Divisors of 21498005518

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 11 22 41 67 82 127 134 254 451 737 902 1397 1474 2747 2794 2801 5207 5494 5602 8509 10414 17018 30217 30811 57277 60434 61622 93599 114554 114841 187198 187667 229682 348869 355727 375334 697738 711454 1263251 2064337 2526502 3837559 3912997 4128674 7675118 7694347 7825994 14584807 15388694 23833709 29169614 47667418 84637817 160432877 169275634 262170799 320865754 524341598 977182069 1954364138 10749002759 21498005518
• Sum of all divisors σ(n): 36875575296
• Sum of proper divisors (its aliquot sum) s(n): 15377569778
• 21498005518 is a deficient number, because the sum of its proper divisors (15377569778) is less than itself. Its deficiency is 6120435740

Bases of 21498005518

• Binary: 10100000001011000011000100000001110₂
• Hexadecimal: 0x50161880E
• Base-36: 9VJCV7Y

Squares and roots of 21498005518

• 21498005518 squared (21498005518²) is 462164241251958448324
• 21498005518 cubed (21498005518³) is 9935609408656885950376069851832
• The square root of 21498005518 is 146621.9817012443
• The cube root of 21498005518 is 2780.5628968165

Scales and comparisons

• 21,498,005,518 seconds is equal to 683 years, 29 weeks, 4 days, 12 hours, 11 minutes, 58 seconds.
• To count from 1 to 21,498,005,518 would take you about one thousand, three hundred sixty-seven 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 21498005518 cubic inches would be around 231.7 feet tall.

Recreational maths with 21498005518

• 21498005518 backwards is 81550089412
• The number of decimal digits it has is: 11
• The sum of 21498005518's digits is 43
• More coming soon!